?bract

bract 發(fā)音

英：[br?kt]　　美：[br?kt]

英：　　美：

bract 中文意思翻譯

bract 詞性/詞形變化，bract變形

形容詞: bracteal |

bract 短語(yǔ)詞組

1、bract scale ─── 苞鱗

2、bract define ─── 苞片界定

3、bract cell ─── 苞片細胞

4、anterior bract cell ─── 前苞片細胞

5、bract means ─── 苞片意味著(zhù)

6、bract leaf ─── 苞葉， ─── 苞

7、bract definition ─── 苞片定義

8、bract test ─── 苞片試驗

9、bract viit ─── 苞片連接

bract 相似詞語(yǔ)短語(yǔ)

1、brace ─── v.使做準備；抵??；繃緊；支撐；加固；n.夾子；支架；牙箍；背帶（常復數）；大括號；（獵獲的鳥(niǎo)或獸）一對，一雙；曲柄；連譜號；（船上的）轉帆索；n.(Brace)（美）布雷斯（人名）

2、brach ─── n.雌獵犬；n.(Brach)（瑞典）布拉克（人名）；（德、波、捷）布拉赫（人名）

3、brant ─── n.黑雁；n.(Brant)人名；(英、葡、瑞典、捷)布蘭特；(俄)勃蘭特

4、bracts ─── n.[植]苞片（bract的復數）；[植]苞葉

5、fract ─── adj.打破的；v.打破

6、brat ─── n.乳臭未干的小孩；頑童；n.(Brat)人名；(法、塞)布拉特

7、brack ─── n.分等，挑選；（愛(ài)爾蘭）果子面包；n.(Brack)人名；(英、法、德、西)布拉克

8、bact ─── abbr.可得的最佳控制污染技術(shù)（bestavailablecontroltechnology，等于最佳可行控制技術(shù)）；細菌性結膜炎（bacterialconjunctivitis）

9、tract ─── n.束；大片土地，地帶；小冊子；n.(Tract)人名；(英)特拉克特

bract 常見(jiàn)例句（雙語(yǔ)使用場(chǎng)景）

1、Inflorescences terminal or pseudolateral (terminal on a short, lateral branchlet opposite a leaf), umbellate or with flowers paired or solitary;bract absent. ─── 花序頂生或假側生(在短，側生小枝上頂生，與葉對生)，傘形或具花成對或單生；

2、Abstract : Tillandsia has some good characters , for example, strong resistance, manageable, clean, portable, without soil, beautiful leaf, flower and bract and so on. ─── 摘要 ： 空氣鳳梨抗逆性強、易管理、潔凈、輕便、無(wú)需泥土、既能賞葉，又可觀(guān)花、觀(guān)苞片；

3、each bract subtending a small dichasium with 2 or 3 flowers; ─── 每苞片對著(zhù)一小的二歧聚傘花序具2或3花；

4、Of or relating to a sessile leaf or bract that completely clasps the stem and is apparently pierced by it. ─── 抱莖的屬于或關(guān)于完全環(huán)繞莖部并明顯被莖穿過(guò)的無(wú)柄葉片或苞葉的

5、The Effects of Corn Bract Decotion on Endothelin and Prostacyclin and Morphology of Atherosclerosis in Rabbits ─── 玉米苞葉煎劑對動(dòng)脈粥樣硬化家兔血清內皮素、前列環(huán)素及病理形態(tài)學(xué)影響

6、After an inflorescence branch primordium is shaped,first it produces a terminal flower prmordium,later a bract and continually an axillary bud primordium and an accessory bud primordium in the axill of the bract. ─── 花序分枝原基形成后先產(chǎn)生分枝的頂花原基,然后產(chǎn)生苞葉原基,苞葉原基腋內再依次分化出腋芽原基和副芽原基,如此反復進(jìn)行多次。

7、In the early December, the first bract primordium was formed in the axil scale at the cone base, then bract initiation had occurred in acropetal direction. ─── 12月初，最初的苞片原基在雌球果原基的鱗片的葉腋處產(chǎn)生，之后其由基部向頂部連續發(fā)生。

8、Furthermore, we also confirmed the view that sepal and bract are homologous. ─── 此外，本文也進(jìn)一步證實(shí)了花萼與苞片的同源性。

9、Involucral bract petiole 1--2 mm wide; leaf blade central leaflet 3-lobed; sepals ca. 5, pilose or subglabrous, with or without vein anastomoses. ─── 總苞片葉柄1--2毫米寬；葉片中心的小葉3淺裂；萼片約的5，具柔毛或近無(wú)毛，有或沒(méi)有網(wǎng)結脈。(15

10、Inflorescences axillary or lateral, produced with young leaves, paniculate or racemose, pendent, flowers 1 per bract. ─── 花序腋生或側生，與幼葉一起生出，圓錐狀或總狀，下垂，每苞片1花。

11、each flower with 1 bract and 2 bracteoles, scarious. ─── 花兩性每花具1苞片和2小苞片，干膜質(zhì)。

12、Effect of corn bract on the rate of apoptosis of smooth muscle cells and expression of p53 and Fas in atherosclerotic rabbits ─── 玉米苞葉對動(dòng)脈粥樣硬化家兔平滑肌細胞凋亡及p53和Fas蛋白表達的影響

13、bracts initially small, 1 bract becoming much enlarged in fruit, scarious, reticulate veined; ─── 最初小的苞片，1苞片非常放大在果期，干膜質(zhì)，網(wǎng)狀的脈；

14、Inflorescence axillary, unbranched, male flowers 2 or 3 per bract. ─── 花序腋生，不分枝，每苞片雄花2或3。

15、involucral bract leaflike;heads many, hemispheric, many flowered. ─── 總苞片葉狀頭狀花序很多，半球形，多花的。

16、Seeds connate with bracts, sometimes with 2 apparent lateral wings formed from bract. ─── 合生的種子具苞片，有時(shí)具由組成的明顯側翅苞片。

17、One - bract ─── 一枚苞片

18、Any of various deciduous shade trees of the genus Tilia having heart - shaped leaves,drooping cymose clusters of yellowish,often fragrant flowers,and peduncles united into a large lingulate bract. ─── 椴樹(shù)一種落葉遮蔭樹(shù)木椴樹(shù)屬，長(cháng)有心形葉，淺黃色聚傘狀下垂花序，通?；ǘ浞枷?，花梗下端有巨大舌狀苞片

19、free bract apex a small mucro. ─── 離生苞片先端一小的短尖頭。

20、We previously reported that SUPERNUMERARY BRACT (SNB) regulates the transition of spikelet meristems into floral meristems in rice. ─── 我們之前已經(jīng)報道過(guò)SNB（多穎殼）基因，它調控著(zhù)水稻小穗分生組織向花分生組織的轉變。

21、bract absent. Flowers bisexual, usually nodding at anthesis, ascending in fruit, spreading funnelform. ─── 苞片無(wú)花兩性，通常有節的在花期，在果期上升，平展漏斗狀。

22、Flowers solitary in bract axils, bisexual, with 2 bractlets. ─── 在苞片花單生腋，兩性，具2小苞片。

23、Flowers perfect, arranged in terminal or axillary heads or spikes, flower solitary in axil of a bract, subtended by 2 bracteoles. ─── 完全花，在頂生或腋生頭狀花序或穗狀花序里排列，花單生在一苞片的腋里的，被2小苞片包著(zhù)。

24、wing bract ─── 翅苞

25、Leaf petiole glabrous or subglabrous. Leaf and bract blade central segment obovate, apex 3-lobulate or 3-dentate; lateral segments unequally 2-lobed or 2-lobulate, or entire. ─── 葉柄無(wú)毛或近無(wú)毛。葉子和苞片中心裂片倒卵形，先端具3小裂片或者3具牙齒；不相等的側裂片2裂的或2具小裂片，或全緣。

26、Bract base decurrent; bractlet margin membranous laterally, but apex herbaceous, acute; anther appendage apex pungent. ─── 苞片基部下延；小苞片側面邊緣膜質(zhì)的，但是頂草質(zhì)，銳尖；花藥附屬物先端銳尖。

27、Capsule ovoid to depressed globose, shorter than calyx; ovary ovoid to depressed globose; inflorescences cymose, sympodial, or scorpioid, racemose; bract apparently absent or 1; stem leaves 1 to few. ─── 球狀的蒴果卵球形到下凹，短于花萼；子房卵球形到下凹球狀；花序聚傘狀，合軸，或者蝎尾狀，總狀；苞片表面上無(wú)或1；干把1留給少數。(11

28、Study on tissue culture from bract explant of dwarf Euphorbia pulchrrima ─── 矮生一品紅苞片外植體組織培養技術(shù)研究

29、free bract apex a mucro. ─── 離生苞片先端一短尖頭。

30、bract of each flower ─── 每個(gè)花的苞片

31、Scape terminal or lateral, sheathed or naked.Inflorescence a terminal umbel, sometimes with bulblets, rarely flowerless and with bulblets only, enclosed in a spathelike bract before anthesis. ─── 花序頂生傘形花序，有時(shí)具小珠芽，很少無(wú)花的和僅具小株芽，內藏于佛焰苞狀苞片在開(kāi)花期之前。

32、Any of various deciduous shade trees of the genus Tilia having heart-shaped leaves,drooping cymose clusters of yellowish,often fragrant flowers,and peduncles united into a large lingulate bract. ─── 椴樹(shù)，一種落葉遮蔭樹(shù)木椴樹(shù)屬，長(cháng)有心形葉，淺黃色聚傘狀下垂花序，通?；ǘ浞枷?，花梗下端有巨大舌狀苞片。

33、Study on the Bract Abaxial Epidermis of the Genus Scirpus from Shandong Province ─── 山東藨草屬苞片下表皮微形態(tài)的研究

34、Genetic Analysis of Ear Bract Characters in Maize ─── 玉米果穗苞葉性狀的遺傳分析

35、A small chafflike bract enclosing the flower of a grass. ─── 內稃一種包住花的禾木科小穗上的苞片

36、Flowers hermaphroditic, with 1 bract and 2 bracteoles, axillary or clustered into spikes. ─── 花兩性，具1苞片和2小苞片，腋生或簇生成穗狀花序的。

37、The existence of bract primordium during the early stages in many species of Potamogeton indicates that the absence of bract in mature flowers should be the result of reduction. ─── 在花原基早期發(fā)育的過(guò)程中苞片原基的存在表明眼子菜屬植物成熟花中缺乏苞片是簡(jiǎn)化的結果。

38、Keywords Corn bract;Atherosclerosis;Smooth Muscle Cell;Apoptosis;Prolifiration Index （PI）; ─── 玉米苞葉;動(dòng)脈粥樣硬化;平滑肌細胞;凋亡;增殖;

39、Stipules persistent, often becoming a rounded, dentate bract. ─── 托葉宿存，經(jīng)常成為一圓形，有齒的苞。

40、At the end of February, the bract attained approximately their full size, and a pair of anatropous ovules were initiated on the adaxial surface at the base of the fertile ovuliferous scale. ─── 2月底，苞片體積不再發(fā)生變化，珠鱗膨大端的基部的近軸面分化出2個(gè)倒生胚珠。

41、Flowers bisexual, often in clusters of 2--4, sometimes solitary, small, subtended by a bract and a few bracteoles; ─── 花兩性，通常在2-4簇生，有時(shí)單生，小，以苞片和一些被包著(zhù)；

42、They are clustered in whorled double rows along the the floral stalk, each cluster covered by a thick, waxy, hood like bract, purple outside and deep red within. ─── 他們群集在雄蕊雙排沿花,莖,每簇復蓋厚,糯,像罩苞片,外面紫色和深紅色以?xún)?

43、resistance of frego bract cotton was neutral, but insecticideamount on its green boll surface increased by4.9—10.0 times. ─── 對紅鈴蟲(chóng)的抗性表現為中性，但可提高殺蟲(chóng)劑在棉鈴表面的分布量4.9—10.0倍。

44、Stipules lanceolate, caducous, not becoming a bract. ─── 托葉披針形，早落，不成為一個(gè)苞。

45、Rhizome both long and short. Leaf petiole and scape hirsute. Involucral bract blade ca. 3 cm. Cyme 4- or 5-flowered. Sepals white to pink, 5--6 mm. Ovary base narrowed. Stigma globose. ─── 根狀莖長(cháng)和短。葉柄和花葶具粗毛?？偘~片大約3厘米。聚傘花序4或5花。萼片白色到粉紅色，5-6毫米。子房基部狹窄。柱頭球狀。

46、1 Branchlets, petioles, and veins with unguiculate hairs or scales, some scales truncate; bract narrowly ovate, ca. 5 mm. ─── 小枝，葉柄和有有爪的頭發(fā)或者規模，一些鱗片截形的靜脈；苞片狹卵形，約5毫米

47、Corn bract ─── 玉米苞葉

48、free bract apex a short mucro. ─── 離生苞片先端一短短尖頭。

49、anterior bract cell ─── 前苞片細胞

50、pertaining to or resembling or functioning as a bract ─── 關(guān)于、類(lèi)似于苞葉，或具有苞葉的功能

51、Fruiting bract entire, inconspicuous; lateral bracteoles expanded into 2 small wings on nutlet, fused into disc wing, or fused with sepals to form husk; leaves odd-pinnate. ─── 果苞片全緣，不明顯；在小堅果上擴展到2個(gè)小的翅膀的側的小苞片，熔化成盤(pán)狀翅，或熔合具萼片形成外殼；奇數羽狀復葉(3

52、Florets composed of 2 opposing bracts enclosing a single small flower, outer bract (lemma) clasping the more delicate, usually 2-keeled inner bract (palea); ─── 小花由2個(gè)對生的苞片包裹一個(gè)小花，外面的苞片（外稃）包裹更小的2個(gè)內苞片（內稃）。

53、free bract apex a long, recurved cusp. ─── 離生苞片先端一長(cháng)，下彎的尖突。

54、Stipules persistent, often becoming a rounded, dentate bract, base amplexicaul, margin sharply denticulate. ─── 托葉宿存，經(jīng)常成為一圓形，有齒的苞片，基部抱莖，邊緣銳具小齒。

55、Any of several southern African herbs of the genus Strelitzia, especially S. reginae, having orange and blue flowers grouped above a boat-shaped bract. ─── 天堂鳥(niǎo)（植物）：一種非洲南部的鶴望蘭屬草本植物，尤指鶴望蘭，在船形苞片上長(cháng)有成群的桔色和藍色花朵

56、pertaining to or resembling or functioning as a bract. ─── 關(guān)于、類(lèi)似于苞葉，或具有苞葉的功能。

57、Raceme rachis and pedicels pubescent or puberulent ; bract and bracteole usually borne on distal 1/2 of pedicel. ─── 總狀花序軸和花梗具短柔毛或微柔毛；苞片和小苞片通常生于花梗上部的1/2。

58、Stipules lanceolate, ca. 4 mm, membranous, densely covered with short brown pubescence, glabrescent , basal ones bract like and persistent. ─── 托葉披針形，約4毫米，膜，密被短的棕色的有毛，后脫落，基生者苞片狀和持久。

59、Fruit lens-shaped, attached to midrib of accrescent, membranous, reticulately veined floral subtending bract. ─── 果透鏡形，著(zhù)生于增大，膜質(zhì)，網(wǎng)狀脈的花對著(zhù)的苞片的中脈。

60、Cymes 1-6-flowered; bract margins entire to dentate or serrulate; calyx lobes unequal. ─── 聚傘花序1-6開(kāi)花；苞片邊緣全緣到具牙齒的或有細鋸齒；萼裂片不等長(cháng)。(12

61、Bracteole entire, subentire, or lacerate at margin; basal bract 2.5--6 cm; flowers solitary. ─── 小苞片全緣，近全緣，或撕裂狀在邊緣；基部的苞片2.5--6厘米；花單生(6

62、involucral bract ─── 總苞葉

63、free bract apex a very short mucro. ─── 離生苞片先端一非常短短尖頭。

64、Flowers 1-3 borne on axil of a fleshy bract, sessile, appearing sunken into fleshy rachis, without bractlets, bisexual. ─── 一肉質(zhì)的苞片，無(wú)梗，凹陷成為肉質(zhì)的軸，沒(méi)有小苞片的花1-3生于腋，兩性。

65、great deal of variation in certain characters, especially in leaf and bract morphology, and many differences exist in the disposal of taxon. ─── 葉和苞片等形態(tài)變異較大，在分類(lèi)處理上存在較大的差異。

66、Racemes terminal.Flowers few, solitary from bract axils. ─── 總狀花序頂生開(kāi)花很少，單生從那里苞片。

67、basal cincinnus with a leaflike involucral bract at base, with bisexual flowers, others without involucral bracts, with only male flowers. ─── 基部的蝎尾狀聚傘花序具一葉狀的總苞片在基部，具兩性花，其它的沒(méi)有總苞片的，具只有雄花。

68、Leaf blade smaller, marginal teeth without awns. Bract 5-9 cm. Fruit ovoid, rarely obscurely 5-angled, not tuberculate. ─── 葉片更小，邊緣的齒沒(méi)有芒。苞片5-9厘米。果卵形體，很少具不明顯的5角，不具瘤。

69、During reproductive development, DEP1 was preferentially expressed on the adaxial side of the bract primordium, as well as in the bract primordia of primary and secondary rachis-branches. ─── 在生殖發(fā)育期間，DEP1在葉原基的近軸面，以及初生次生枝梗形成階段的葉原基中優(yōu)先表達。

70、A small bract. ─── 小苞片

71、basal bract leaflike and usually conspicuously longer than flower; ─── 葉狀的基部苞片和長(cháng)于花的通常顯著(zhù)；

72、Seeds navicular, convex on 1 side, with a deep groove on other; pedicel as long as or longer than bract, rarely slightly shorter. ─── 種子舟形，凸的在一邊上，具一個(gè)深的槽溝在另1面；花梗等長(cháng)或長(cháng)于苞，很少稍微有點(diǎn)短。(13

73、bract and bracteole(s) borne on or at base of pedicel; ─── 花單生苞片和小苞片生于花梗上或在花?；?；

74、Inflorescences spicate, lax, to 25 cm.Flowers subsessile, solitary from bract axils. ─── 穗狀，疏松的花序，令25厘米花的是近無(wú)柄，苞片的單生。

75、Leaf petiole villous. Leaf and bract blade central segment broadly rhombic, apex many lobulate or many dentate; lateral segments unequally 2-parted. ─── 葉柄具長(cháng)柔毛。葉和苞片中心裂片寬棱形，先端很多具小裂片或很多具牙齒的側裂片不相等的2深裂。

76、Inflorescences capitate spikes, without terminal flowers, each flower with simple bract and without bracteoles, sepals present; capsules arranged spirally along main axis, sessile. ─── 花序頭狀穗狀花序，沒(méi)有頂生花，每花具單苞片沒(méi)有小苞片，萼片宿存；沿著(zhù)主軸，無(wú)梗螺旋排列的蒴果。(11

77、bract machilus bark ─── 狗爪樟

78、branches frequently subtended by variously modified bract. ─── 枝條通常具有形狀多樣的苞片。

79、Flowers subtended by a primary bract and 2 bracteoles, sessile, usually 4-merous, minute, lowermost ones female, uppermost ones male, sometimes middle ones bisexual. ─── 花具一原生苞片和2小苞片，無(wú)梗，4瓣，雌花的小，最下，雄花的最上的通常被包著(zhù)，雄花：花萼2-4深裂；

80、Leaf blade larger, marginal teeth with awns. Bract 5-9 cm. Fruit obovoid or obovoid-cylindrical, prominently 5-angled, densely stellate hairy, not tuberculate. ─── 更大的葉片，邊緣的齒具芒。苞片5-9厘米。果倒卵球形或倒卵球形圓筒狀，具顯著(zhù)的5角，密被星狀毛，不具瘤。

81、Inflorescences terminal or axillary, sometimes ramiflorous, [branched or] unbranched, male flowers 1-3 per bract, female 1 per bract. ─── 花序頂生或腋生，有時(shí)具枝花，[分枝或]不分枝，雄花每苞片1-3，雌花每苞片1。

82、The bract primordium with its axillary flower primordia is dome-shaped in the beginning and then elongates. ─── 苞片原基及其腋生的花原基最初呈圓丘狀，隨后伸長(cháng)。

83、Be like: Evergreen cane can " eat " benzene, bracketplant can " devour " indoor carbon monoxide, formaldehyde, tian Naxing's bract can absorb benzene, 3 chloric ethylene. ─── 如：常青藤能“吃”苯，吊蘭能“吞食”室內的一氧化碳、甲醛，天南星的苞葉能吸收苯、三氯乙烯。

84、of or relating to a sessile leaf or bract that completely clasps the stem and is apparently pierced by it ─── 屬于或關(guān)于完全環(huán)繞莖部并明顯被莖穿過(guò)的無(wú)柄葉片或苞葉的

85、The fresh quality of bract and leaves, and the dry quality of above-ground parts of poinsettia grown in medicine residue-substrate were higher than that in peat-substrate. ─── 中藥渣基質(zhì)上一品紅的苞片鮮質(zhì)量、葉片鮮質(zhì)量、地上干質(zhì)量顯著(zhù)增加，其中以苞片鮮質(zhì)量的增幅最大。

86、Plants glabrous except for rachis and bract margins. Leaf blade elliptic or ovate-lanceolate. ─── 植株無(wú)毛除了軸和苞片邊緣。葉片橢圓形披針形或卵形。

87、Moreover, the changes of internode length, leaf size and bract color were depended on the combination of seedling clone and commercial cultivar. ─── 又嫁接后實(shí)生苗營(yíng)養系節間長(cháng)較短，葉片大小及苞葉顏色之改變，則因實(shí)生苗營(yíng)養系或嫁接商業(yè)品種不同而異。

88、Scape simple, erect, usually with a few small, bract like leaves. ─── 花葶單一，直立，通常具一些小的，苞片狀葉。

89、Leaf petiole more than 2 mm wide; involucral bract blade undivided or sometimes 3-lobed; cyme 1-flowered; sepals glabrous or sparsely puberulent; staminodes sometimes present. ─── 葉柄超過(guò)2毫米寬；總苞片不裂或有時(shí)3淺裂；聚傘花序1花；萼片無(wú)毛的或疏生微柔毛；退化雄蕊有時(shí)宿存。(50