?cork

cork發(fā)音

英：[k?:k]　　美：[k?rk]

英：　　美：

cork中文意思翻譯

n. 軟木塞, 軟木樹(shù), 軟木

cork詞形變化

動(dòng)詞過(guò)去分詞: corked | 動(dòng)詞現在分詞: corking | 動(dòng)詞過(guò)去式: corked | 動(dòng)詞第三人稱(chēng)單數: corks |

cork同義詞

close up | top | bobfloat | cork up | spile | close | bob | cover | stopcock | up | stopple | tap | stopper | stem | lid | spigot | phellem | cap | pin | bobber | stop | bottle cork | closure | seal | faucet | bung | plug | tampion

cork反義詞

uncork

cork習慣用語(yǔ)

cork特殊用法

cork常見(jiàn)例句

1 、To stop or seal with or as if with a cork.───塞住用或象是用塞子塞住或封上

2 、I was gonna break this bottle if I couldn't get the cork out.─── 如果弄不出酒塞 我是打算把這酒瓶砸了的

3 、He's not shedding tears, he's popping champagne corks.─── 他才沒(méi)有潸然淚下 他在開(kāi)香檳慶祝呢

4 、If you twist the cork,it will come out of the bottle.───你一擰那個(gè)瓶塞,就會(huì )把它從瓶子上拿下來(lái)。

5 、This article introduced the cork resource in our world, advanced characteristics of cork and thecommon cork products.───對世界軟木資源的分布情況、軟木的優(yōu)良特性以及常見(jiàn)的軟木產(chǎn)品進(jìn)行了介紹。

6 、Don' t cork it all up : if you feel angry, show it.───別什麼都悶在心里, 你有氣就發(fā)泄出來(lái).

7 、Just press a button, out pops the cork.─── 只需要輕輕一按 就能輕松取出瓶塞

8 、Jammed the cork in the bottle.───將軟木塞壓入瓶子

9 、England lose 2-1 to Italy with Cork now at centre-back.───回到17歲以下世少賽，葡萄牙3：1擊敗美國，英格蘭1：2不敵意大利。

10 、An object, such as a cork or a wadof cloth, used to fill a hole tightly; a stopper.───塞子;栓子用來(lái)填緊洞孔的物體,如軟木塞或一團布;塞子。

11 、Don't cork it all up: if you feel angry, show it.───別什麼都悶在心里，你有氣就發(fā)泄出來(lái)。

12 、The cork was bobbing on the water.───(垂釣的)浮子在水中上下跳動(dòng)。

13 、She dived below the surface,then bobbed up like a cork again a few seconds later.───她潛入水中，幾秒鐘后像軟木塞一樣又浮了上來(lái)。

14 、The cork on his fishing - line was bobbing up and down on the water .───他鉤絲上的浮子在水面上下急動(dòng)。

15 、Pieces of cork will be put on the ground and against the walls to enable the scorpion to hide during the day.───可把軟木放在地表或靠在箱內壁以便于蝎子在白天藏匿。

16 、He told him how to choose the right type of fishing cork.───他告訴他怎樣選擇正確的釣魚(yú)浮標。

17 、If you twist the cork , it will come out of the bottle .───你一擰那個(gè)瓶塞，就會(huì )把它從瓶子上拿下來(lái)。

18 、You will also find celebrations in cities such as Cork, Limerick and Galway.───你會(huì )在許多城市看到慶典活動(dòng)，如科克、利默里克、戈爾韋等城市。

19 、On the twenty-sixth, Lord Cork presented his preliminary appreciation.───26日，科克勛爵提出了他的初步估計。

20 、Do you have any tools to draw out the cork?───你有工具把軟木塞拔開(kāi)嗎？

21 、Knife and a fork, bottle and a cork, that is the way you spell New York.───刀子和叉子,瓶子和木塞,這是你拼寫(xiě)紐約的方法。

22 、Can you help me with this wine bottle? I can't get the cork out.───你能幫我打開(kāi)這個(gè)酒瓶嗎?我取不出這個(gè)木塞子。

23 、It is very bad for you to cork your sorrow up like that.───你那樣把悲痛強壓在心里對身體很不好。

24 、Volatile compounds produced by microorganisms isolated from cork.───從軟木塞中分離出的微生物所產(chǎn)生的揮發(fā)性物質(zhì)。

25 、It made a hollow sound, like a cork popping from a bottle.───發(fā)出砰的一聲，好象從瓶子里撥出了一個(gè)軟木塞一樣。

26 、He extracted a cork from a bottle .───他將瓶塞從瓶中拔出。

27 、He drew the cork from the bottle.───他把瓶塞拔了出來(lái)。

28 、I got the Italian kind with the cork in it.─── 我買(mǎi)了一種意大利的 里面有軟木塞的那種

29 、He pulled the cork out of the bottle.───他拔出了瓶塞。

30 、They'd been to Cork for a trip, and they thought it was bang on.───他們去科克旅行過(guò)，他們認為那次旅行好極了。

31 、A 'Twintop' technical cork with agglomerated cork paritcles sandwiched between two discs of real cork at either end.───兩端是軟木、中間為碎末壓制粘合而成。

32 、He will give you the microfilm in a champagne cork.─── 他會(huì )把微縮膠卷放在香檳的軟木塞里給你

33 、With the bottle on its side, this keeps the cork moist. If the cork dries, air could enter and oxidize the wine.───應該平放，這使軟木塞濕潤。如果軟木塞干燥，空氣可以進(jìn)入和氧化里面的葡萄酒。

34 、They should be used only with an "antidiffusion cork".───他們應該僅用一種“抗**塞”。

35 、Can you help me with the wine bottle. I can't get the cork out.───你能不能幫我弄一下這酒瓶？我拿不出瓶塞了。

36 、A thick layer, as of leather or cork, between the inner and outer soles of a shoe, giving added height.───厚鞋根在鞋底的內層及外層之間用皮革或軟木制成的厚層，可以增加高度

37 、Some segments of hypha, swelled hypha, pelotons and conidiophore were in colonies in cork and secondary phloem.───在美登木木栓層和次生韌皮部中分布有菌絲片段、膨大的菌絲、菌絲團及分生孢子;

38 、The instructions of opening the cork are on the bottle.───開(kāi)啟瓶塞的說(shuō)明在瓶上。

39 、It is very bad for you to cork your sorrow up like that; you'd feel much better if you could "let yourself go".───你那樣把悲痛強壓在心里，對身體很不好; 還是讓它發(fā)泄出來(lái)，你會(huì )覺(jué)得好過(guò)些的。

40 、She dived below the surface, then bobbed up like a cork again a few seconds later.───她潛入水中,幾秒鐘后像軟木塞一樣又浮了上來(lái)。

41 、I'm 25, and you know how I feel about champagne corks.─── 我才25歲 你知道我不喜歡噴香檳木塞

42 、The variations of cork characters from 10 populations of ?Quercus variabilis? in Shaanxi province are analyzed.───對陜西境內10個(gè)栓皮櫟群體栓皮性狀變異情況進(jìn)行了試驗分析。

43 、The boat bobbed like a cork on the waves: light and buoyant.───小船在大浪中猶如軟木塞：輕輕漂來(lái)漂去。

44 、It is very bad for you to cork your sorrow up like that; you'd feel much better if you could"let yourself go".───你那樣把悲痛強壓在心里，對身體很不好；還是讓它發(fā)泄出來(lái)，你會(huì )覺(jué)得好過(guò)些的。

45 、She plugged a cork in the wine bottle.───她塞緊酒瓶的軟木塞。

46 、Cork up the mixture after use.───合劑用過(guò)后用軟木塞塞住。

47 、Don't cork it all up: if you feel angry,show it.───別什么都悶在心里，你有氣就發(fā)泄出來(lái)。

48 、Before I left she gave me two cork paintings as a souvenir.───臨行前她送給我兩幅軟木畫(huà)作為紀念。

49 、While observing cork, he described it as resembling a honeycomb and was the first to refer to the cavities as "cells".───在觀(guān)察軟木塞時(shí)，他發(fā)現了類(lèi)似于蜂房一樣的結構并第一次把這種小室稱(chēng)為細胞。

50 、The cork popped and flew out of the bottle.───啪的一聲，瓶塞飛出來(lái)了。

51 、Mr Innes said: "Because it's so light it pops out of the water like a cork.───Innes先生曾經(jīng)說(shuō)道：“由于它非常的請，所以它能像軟木一樣浮在水上。

52 、Are you interested in the cork stoppers?───你對軟木塞感興趣嗎?

53 、The bottle cork popped when he pulled it out.───他拔瓶塞的時(shí)候，發(fā)出了“砰”的響聲。

54 、He managed to cork up his feelings while his guest was in the room.───客人還在房里，他設法抑制住自己的感情。

55 、Don't cork it all upif you feel angry,show it.───別什么都悶在心里,你有氣就發(fā)泄出來(lái).

56 、Uh, it could be it could be that the, uh that the cork has been compromised.─── 可能是 可能是由于 瓶塞可能出問(wèn)題了

57 、Pop the cork for me, please.───幫我把瓶塞拔出來(lái)。

58 、If we throw a piece of cork on to pond,it will not sink to the bottom; instead,it will float.───如果向池塘里扔一個(gè)木塞，它不但不會(huì )沉底而會(huì )漂起來(lái)。

59 、In the cork workshop, the workers fork the pork.───在軟木車(chē)間，工人們用叉子叉豬肉。

60 、The for-mation of periderm is relatively late and cork cambium is come from the cortex cells which arenear endodermis.───周皮發(fā)生較遲，其木栓形成層由緊靠?jì)绕拥钠蛹毎a(chǎn)生。

61 、A cork fits into the neck of a bottle.───一個(gè)塞子塞在了瓶頸處。

62 、He managed to cork up his feelings while his guests were in the room.───客人還在房里,他設法抑制住自己的感情。

63 、The other main urban centres are:Cork,Limerick,Galway and Waterford.───其他主要的城市中心還有科克，利默里克，高爾韋和沃特福德。

64 、She tried to hold it back, but suddenly she popped her cork.───她盡力克制怒火，但是突然她還是發(fā)了通脾氣。

65 、The adventitious buds can be developed in the crossed area of both cork cambium and phloem ray inside the root.───宿根上的不定芽發(fā)生于韌皮射線(xiàn)與木栓形成層交叉的區域。

66 、I'll have to cork six to make up for your four.─── 我得塞六個(gè)來(lái)補上你的四個(gè)

67 、If we throw a piece of cork on to pond, it will not sink to the bottom; instead, it will float.───如果向池塘里扔一個(gè)木塞，它不蛤不會(huì )沉底而會(huì )漂起來(lái)。

68 、The champagne cork popped when he pulled it out.───他拔香檳酒的瓶塞時(shí)它砰的一聲開(kāi)了。

69 、An object, such as a cork or a wad of cloth, used to fill a hole tightly; a stopper.───塞子; 栓子用來(lái)填緊洞孔的物體，如軟木塞或一團布; 塞子

70 、He pulled the cork , and tipped up the bottle and drank.───他拔掉瓶塞，把瓶底朝上舉起就喝了起來(lái)。

71 、Forming cork tissue seems to be mark of differentiation of tissue in callus.───它的形成是愈傷組織產(chǎn)生分化的標志.

72 、An object, such as a cork or a wad of cloth, used to fill a hole tightly;a stopper.───塞子；栓子用來(lái)填緊洞孔的物體，如軟木塞或一團布；塞子

73 、Do you have any tools to draw outthe cork?───你有工具把軟木塞拔開(kāi)嗎?

74 、We're like a thousand champagne corks exploding at once.─── 我們就像一千個(gè)香檳塞同時(shí)炸開(kāi)

75 、You're so constipated that by the time the cork blows, a bubbly liquid.───就是當那塊使你便秘已久的"軟木塞""波"的一聲離開(kāi)后會(huì )有泡泡狀的液柱流出屁眼的那種。

76 、That fellow bobs up like a cork.───(喻)那個(gè)人百折不回。

77 、Jim got a cork out of a bottle yesterday.───吉姆昨天從瓶?jì)劝讶优鰜?lái)。

78 、He was yanking the cork out of a bottle.───他正使勁拔出瓶塞。

79 、This guy in a suit tracked me down and he gave me this cork.─── 一個(gè)穿著(zhù)西裝的人跟著(zhù)我 并且給了我這個(gè)軟木塞

80 、A small amount of light powder of cork dust is sprinkled uniformly along the tube.───少量的輕粉末或軟木屑均勻地撒在管內。

81 、The questions exist in our country about the cork industry and corresponding settlementmeasures have been analyzed.───分析了我國軟木工業(yè)所存在的問(wèn)題,并提出了相應的解決措施。

82 、In the cork workshop, the workers fork m the pork.───在軟木車(chē)間,工人們用叉子叉豬肉.

83 、If we jiggle the cork, a new phenomenon is involved.───假如我們晃動(dòng)木塞，就會(huì )產(chǎn)生一個(gè)新的現象。

84 、Sealed with or as if with a cork.───塞住的用或者好象用塞子塞住的

85 、Can you help me to open this bottle? The cork won't come out.───你能幫我弄開(kāi)這個(gè)瓶子嗎？軟木塞怎么也拔不出來(lái)。

86 、She dive below the surface, then bob up like a cork again a few second later.───她潛入水中，幾秒鐘後像軟木塞一樣又浮了上來(lái)。

87 、Also, used cork products can be recycled and used again. This makes cork a valuable renewable resource.───于軟木產(chǎn)品也可回收再利用。這就得寶貴的可再生資源。

88 、Reasons for quality problems of adhesive bond between cork sheets and composite cabin are analyzed.───分析了引起復合材料艙體軟木粘貼質(zhì)量問(wèn)題的原因。

89 、They were also traders and did much to develop life in Dublin, Cork and Waterford.───但他們同時(shí)也是商人,為發(fā)展都柏林、科克和沃特福德的生活做出了貢獻。

90 、They're covered with plastic but have cork on the bottoms.───上面并有塑料覆蓋著(zhù)，但底部是軟木做的。

cork的同義詞是什么

copy cord core corf cork corm corn cory cosh coss cost cosy cote cots coup cove cowl cows cowy coxa coys cozy crab crag

cram crap craw crew crib cris croc crop crow crud crus crux cube cubs cuds cued cues cuff cuif cuke cull culm cult cunt

cups curb curd cure curf curl curn curr curs curt cusk cusp cuss cute cuts cwms cyan cyma cyme cyst czar dabs dace dada

dado dads daff daft dago dags dahl dahs dais daks dale dals dame damn damp dams dang dank daps darb dare dark darn dart

dash data date dato daub daut davy dawk dawn daws dawt days daze dead deaf deal dean dear debs debt deck deco deed

deem deep deer dees deet defi deft defy deil deke dele delf deli dell dels deme demo demy dene dens dent deny dere derm

desk deva devs dews dewy dexy deys dhak dhal dhow dial dibs dice dick dido didy died diel dies diet digs dike dill dime

dims dine ding dink dins dint diol dips dipt dire dirk dirl dirt disc dish disk diss dita dite dits ditz diva dive djin doat doby

dock docs dodo doer does doff doge dogs dogy doit dojo dole doll dols dolt dome doms dona done dong dons doom door

dopa dope dopy dore dork dorm dorp dorr dors dory dose doss dost dote doth dots doty doum dour doux dove down dows

doxy doze dozy drab drag dram drat draw dray dree dreg drek drew drib drip drop drub drug drum drys duad dual dubs duce

duci duck duct dude duds duel dues duet duff dugs duit duke dull duly duma dumb dump dune dung dunk duns dunt duos

dupe dups dura dure durn duro durr dusk dust duty dyad dyed dyer dyes dyke dyne each earl earn ears ease east easy eath

TCP之Nagle、Cork、Delay ACK（延遲確認）

[TOC]

TCP協(xié)議中的Nagle算法

TCP中的Nagle算法

Linux下TCP延遲確認(Delayed Ack)機制導致的時(shí)延問(wèn)題分析

TCP-IP詳解：Delay ACK

Nagle算法為了避免網(wǎng)絡(luò )中存在太多的小數據包，盡可能發(fā)送大的數據包。定義為在任意時(shí)刻，最多只有一個(gè)未被確認的小段。小段為小于MSS尺寸的數據塊，未被確認是指數據發(fā)出去后未收到對端的ack。

Nagle算法是在網(wǎng)速較慢的時(shí)代的產(chǎn)物，目前的網(wǎng)絡(luò )環(huán)境已經(jīng)不太需要該機制，該算法在linux系統中默認關(guān)閉。

1)如果包長(cháng)度達到MSS，則允許發(fā)送；

2)如果該包含有FIN，則允許發(fā)送；

3)設置了TCP_NODELAY選項，則允許發(fā)送；

4)未設置TCP_CORK選項時(shí)，若所有發(fā)出去的包均被確認，或所有發(fā)出去的小數據包(包長(cháng)度小于MSS)均被確認，則允許發(fā)送。

對于規則4)，就是說(shuō)要求一個(gè)TCP連接上最多只能有一個(gè)未被確認的小數據包，在該分組的確認到達之前，不能發(fā)送其他的小數據包。如果某個(gè)小分組的確認被延遲了(案例中的40ms)，那么后續小分組的發(fā)送就會(huì )相應的延遲。也就是說(shuō)延遲確認影響的并不是被延遲確認的那個(gè)數據包，而是后續的應答包。

tcp默認使用nagle算法，最大限度的進(jìn)行緩存。

優(yōu)點(diǎn) ：避免網(wǎng)絡(luò )中充斥著(zhù)許多小數據塊，降低網(wǎng)絡(luò )負載，減少網(wǎng)絡(luò )擁塞，提高網(wǎng)絡(luò )吞吐

缺點(diǎn) ：客戶(hù)端的延遲會(huì )增加，實(shí)時(shí)性降低，不適合延時(shí)要求盡量小的場(chǎng)景；且對于大文件傳輸這種場(chǎng)景，會(huì )降低傳輸速度。

用TCP_NODELAY選項可以禁止Negale 算法。此時(shí)，應用程序向內核遞交的每個(gè)數據包都會(huì )立即發(fā)送出去。需要注意的是，雖然禁止了Negale 算法，但網(wǎng)絡(luò )的傳輸仍然受到TCP確認延遲機制的影響。

TCP在接收到對端的報文后，并不會(huì )立即發(fā)送ack，而是等待一段時(shí)間發(fā)送ack，以便將ack和要發(fā)送的數據一塊發(fā)送。當然ack不能無(wú)限延長(cháng)，否則對端會(huì )認為包超時(shí)而造成報文重傳。linux采用動(dòng)態(tài)調節算法來(lái)確定延時(shí)的時(shí)間。

TCP在何時(shí)發(fā)送ACK的時(shí)候有如下規定：

優(yōu)點(diǎn) ：減少了數據段的個(gè)數，提高了發(fā)送效率

缺點(diǎn) ：過(guò)多的delay會(huì )拉長(cháng)RTT（往返時(shí)延）

可以通過(guò)TCP_QUICKACK這個(gè)選項來(lái)啟動(dòng)快速ACK：

所謂的CORK就是塞子的意思,形象地理解就是用CORK將連接塞住,使得數據先不發(fā)出去,等到拔去塞子后再發(fā)出去。Cork算法與Nagle算法類(lèi)似，也有人把Cork算法稱(chēng)呼為super-Nagle。Nagle算法提出的背景是網(wǎng)絡(luò )因為大量小包小包而導致利用率低下產(chǎn)生網(wǎng)絡(luò )擁塞，網(wǎng)絡(luò )發(fā)生擁塞的時(shí)候性能還會(huì )進(jìn)一步下降，因此Nagle算法通過(guò)ACK確認包來(lái)觸發(fā)新數據包的發(fā)送(ACK確認包意味著(zhù)對端已經(jīng)接收到了一個(gè)數據包，即有一個(gè)數據包已經(jīng)離開(kāi)中間網(wǎng)絡(luò )，此時(shí)可以在向中間網(wǎng)絡(luò )注入一個(gè)數據包塊，這稱(chēng)呼為self-clocking)。Cork算法則更為激進(jìn)，一旦打開(kāi)Cork算法，TCP不關(guān)注是否有收到ACK報文，只要當前緩存中累積的數據量不足以組成一個(gè)full-sized數據包就不會(huì )將數據包發(fā)出，直到一個(gè)RTO超時(shí)后才會(huì )把不滿(mǎn)足一個(gè)full-sized的數據包發(fā)出去(實(shí)際上是通過(guò)一個(gè)persist timer來(lái)設置的這個(gè)RTO定時(shí)時(shí)間，persist timer超時(shí)的時(shí)候就會(huì )強制發(fā)送)。

linux中可以通過(guò)TCP_CORK選項來(lái)設置socket打開(kāi)Cork算法。TCP_NODELAY選項和TCP_CORK選項在linux早期版本是互斥的，但目前最新的linux版本已經(jīng)可以同時(shí)打開(kāi)這兩個(gè)選項了，但是TCP_CORK選項的優(yōu)先級要比TCP_NODELAY選項的優(yōu)先級要高。

Nagle算法和CORK算法非常類(lèi)似,但是它們的著(zhù)眼點(diǎn)不一樣,Nagle算法主要避免網(wǎng)絡(luò )因為太多的小包(協(xié)議頭的比例非常之大)而擁塞,而CORK算法則是為了提高網(wǎng)絡(luò )的利用率,使得總體上協(xié)議頭占用的比例盡可能的小.如此看來(lái)這二者在避免發(fā)送小包上是一致的,在用戶(hù)控制的層面上,Nagle算法完全不受用戶(hù)socket的控制,你只能簡(jiǎn)單的設置TCP_NODELAY而禁用它,CORK算法同樣也是通過(guò)設置或者清除TCP_CORK使能或者禁用之,然而Nagle算法關(guān)心的是網(wǎng)絡(luò )擁塞問(wèn)題,只要所有的ACK回來(lái)則發(fā)包,而CORK算法卻只關(guān)心內容,在前后數據包發(fā)送間隔很短的前提下(很重要,否則內核會(huì )幫你將分散的包發(fā)出),即使你是分散發(fā)送多個(gè)小數據包,你也可以通過(guò)使能CORK算法將這些內容拼接在一個(gè)包內,如果此時(shí)用Nagle算法的話(huà),則可能做不到這一點(diǎn).

優(yōu)點(diǎn) ：提高網(wǎng)絡(luò )的利用率

缺點(diǎn) ：對實(shí)時(shí)性有影響

使用TCP_CORK參數進(jìn)行配置