?dimensionless

dimensionless發(fā)音

英：[d?'men??nl?s]　　美：[d?'men??nl?s]

英：　　美：

dimensionless中文意思翻譯

adj. 無(wú)尺寸的；無(wú)維的

dimensionless常見(jiàn)例句

1 、The effects of temperature on the curve of dimensionless nonlinear vibration frequencies vs dimensionless amplitudes are especially investigated by numerical results.───文中還以大量數值算例研究了溫度效應對幅頻曲線(xiàn)的影響。

2 、Based on dimensional analysis, a number of dimensionless groups that governed the performance of the quay wall were investigated, identified and used to design and interpret centrifuge model tests.───基于模擬挖掘機開(kāi)挖溝槽的離心模型試驗結果，建立溝槽槽壁許可破壞模式及速度場(chǎng)，利用極限分析上限法求解開(kāi)挖深度上限解。

3 、On the basis, the influence of dimensionless apparent permeability variation factor and mobility ratio to flow performance has been analyzed.───在此基礎上，分析無(wú)因次表觀(guān)滲透率變化系數和流度比對產(chǎn)量動(dòng)態(tài)的影響。

4 、Keywords Air-sparged hydrocyclone;Dimensionless variables;Dimensionless analysis;───充氣水力旋流器;無(wú)因次準數;無(wú)因次分析;

5 、Keywords chemical reaction;enzyme;substrate;dimensionless;model;───化學(xué)反應;酶;基質(zhì);無(wú)量綱;模型;

6 、dimensionless time───無(wú)因次時(shí)間

7 、dimensionless parameter───無(wú)維參數無(wú)因次參數

8 、Keywords Reversible reaction;Thermokinetics;Mathematical model;Method of dimensionless parameter;───可逆反應;熱動(dòng)力學(xué);數學(xué)模型;無(wú)量綱參數法;

9 、The physical meaning of dimensionless numbers cannot usually be formulated clearly.───無(wú)因次數的物體意義一般不能清楚地用公式表達。

10 、In a village downriver from Dimen, a woman practices the ancient art of making paper by hand.───在地捫河下游的一個(gè)山寨里，一位婦女作著(zhù)古老的手工抄紙手藝活。

11 、The numeric method of dimensionless minimum total operation time of batch distillation of a binary ideal mixture under “total reflux” and ideal operating conditions is introduced.───介紹了在理想操作條件下,“全回流”間歇精餾二元理想混合物量綱1最小操作總時(shí)間的數值計算方法。

12 、The modified correlations of dimensionless groups for calculating both-Ap and Um are presented as the basis for further study on the drying per-formance of the dryer.───提出計算流化壓降的修正式和臨界流化速度的準數關(guān)聯(lián)式,為進(jìn)一步研究此設備的干燥性能打下基礎。

13 、Orthotopic board analysis of limit loads by dimensionless stress yield criterion───按無(wú)量綱屈服準則分析正交異性板的極限荷載

14 、THE THIRD DIMENSIONLESS PARAMETER IN THE PENETRATION DYNAMICS OF RIGID PROJECTILES───剛性彈侵徹動(dòng)力學(xué)中的第三無(wú)量綱數

15 、Present the calculation method and dimensionless problem of the evaluation index attribute value;───提出了指標屬性值和無(wú)量綱化的計算方法;

16 、The Atmospheric Correcting of Diesel Engine Performance by Dimensionless Analysis───應用無(wú)量綱分析法對柴油機性能的大氣修正

17 、In the study, Buckingham Pi theorem was adopted to derive the important dimensionless parameters for correlating conditions of accretion formation in the similar systems.───實(shí)驗可觀(guān)察到水模及蠟模之固凝物皆為圓錐狀，內部皆有一與管徑相同之中空圓柱供氣體流通。

18 、The dimensionless wall roughness was introduced into the wall function to consider the influence of the rough wall.───在壁面函數中引入無(wú)量綱壁面粗糙度以考慮粗糙壁面的影響。

19 、Analysis of ejector performance using dimensionless parameters───使用量綱一參數進(jìn)行噴射器性能分析

20 、Exercise 6 , To demonstrate permittivity in vacuum is actually a dimensionless physical constant.───習題6，試證明真空電導率實(shí)際上是一個(gè)無(wú)量綱的物理常數。

21 、dimensionless performance───無(wú)因次特性無(wú)量綱特性

22 、In a typical day the women make several round-trips, climbing rough paths to reach a hillside forest about three miles from Dimen.───婦女們在一整天里要往返幾趟爬上離地捫寨約3英里的崎嶇的山路，到一處山里的森林里背樹(shù)。

23 、Keywords the liquid desiccant with cooling equipment;dimensionless vapor pressure difference ratio;dimensionless temperature difference ratio;analyzing of the performance of the dehumidifier;───帶冷卻液體除濕;無(wú)量綱蒸汽壓差值比;無(wú)量綱溫度差值比;除濕器性能分析;

24 、The Application of Dimensionless Number Group in Measuring the Flow Rate by Nuzzle───無(wú)因次數群在噴嘴流量測量中的應用

25 、Development of Dimensionless Parameters Real Time Processing System for Refrigeration Experiments───制冷實(shí)驗無(wú)量綱參數實(shí)時(shí)處理系統的開(kāi)發(fā)

26 、dimensionless interzone───無(wú)標度區間

27 、dimensionless group───無(wú)因次群

28 、Keywords liquid circulation flux;power dimensionless number;agitator;transesterification reactor;───循環(huán)流量;功率準數;攪拌器;酯化反應器;

29 、dimensionless local memory time───無(wú)因次局部記憶時(shí)間

30 、dimensionless specific speed───無(wú)因次比轉速

31 、dimensionless unit───無(wú)因次單位

32 、In order to reduce the number of variables, the equations and its parameters for freezing temperature field were converted to dimensionless ones according to the theory of similitude at first.───摘要應用相似理論將凍結溫度場(chǎng)方程和參數無(wú)量綱化，然后建立無(wú)量綱的數值計算模型，研究了在外表面恒溫情況下凍結管壁的無(wú)量綱熱流密度與各無(wú)量綱影響參數間的關(guān)系。

33 、dimensionless density───無(wú)因次密度

34 、dimensionless variable───無(wú)因次變數

35 、Can deeply realize the comity fraternity of of mood friend that the parents love deeply sons and daughters and then can know that the love can make the heart expanded to a dimensionless place.───可以深深體會(huì )父母疼愛(ài)子女的心情,朋友之間的友誼,手足之情,就可以知道有愛(ài)能使心拓展至無(wú)邊無(wú)際的地方。

36 、A divination ritual revived after almost three decades aims to restore harmony in Dimen after the fire and other unfortunate events.───一項占卜儀式在三十年之后重新舉行，目的是恢復地捫寨在火災和其它不幸事件之后的祥和。

37 、Keywords CFB;solids concentration;core/annulus flow structure;dimensionless radius of the core region;───循環(huán)流化床;局部顆粒濃度;環(huán)核流動(dòng)結構;無(wú)因次核心區半徑;

38 、dimensionless cumulativeproduction───無(wú)因次累計產(chǎn)油量

39 、Keywords wireline formation tester;dimensionless interpretation chart;hemi-spherical seepage flow;flowline storage effect;skin effect;───關(guān)鍵詞電纜地層測試器;無(wú)量綱解釋圖版;半球形滲流;管儲效應;表皮效應;

40 、however, one point method that is applicable to radial filtering flow resulted from binomial deliverabilily equation and is dimensionless.───且一點(diǎn)法試井對低滲透或致密氣藏測定一個(gè)穩定測點(diǎn)仍然歷時(shí)太長(cháng)或根本不可能測到。

41 、The dimensionless net pressure, difference of Yang’s modulus and fracture toughness between reservoir and salutatory barrier also affected the behaviors of hydraulic fracture.───產(chǎn)層與突變體之間的彈性模量差異、斷裂韌性差異以及縫內凈壓力無(wú)因次量是影響裂縫走向的重要因素。

42 、Keywords Output;Prediction;Plan;Dimensionless;───產(chǎn)量;預測;規劃;無(wú)因次;

43 、The textural fractal dimensions and dimensionless length of the slag-metal boundary are calculated from the mixing images under various b.───應用分形理論對其邊界的織構分維數及無(wú)量綱長(cháng)度進(jìn)行了計算。

44 、The effect factors on RTM microscopic impregnation process were analyzed with help of dimensionless analysis.───借助無(wú)量綱分析,研究了RTM工藝微觀(guān)浸潤過(guò)程的影響因素。

45 、dimensionless pressure derivative───無(wú)因次壓力導數

46 、Fig．5 Dimensionless complex frequency versus the dimensionless follower force for CSSS plate for H一10一。───圖5CSSS非保守粘彈性板的無(wú)量綱頻率與無(wú)量綱隨從力的關(guān)系曲線(xiàn)(H一10-。

47 、An a rtistic dimens on arises from fhe need to adapt one 's expertise to the given realities in a department or firm.───為了調整一個(gè)人的專(zhuān)業(yè)知識以適應某一部門(mén)或某一公司的需要，會(huì )產(chǎn)生一個(gè)個(gè)新的藝術(shù)范疇。

48 、The purpose is to study the dimensionless ratio of overflow opening area to underflow opening area,A*,and the dimensionless ratio of air flowrate to slurry flowrate, Q*.───具體研究浮選器中渦流定向器出口面積與下部環(huán)狀開(kāi)口面積之比A＊，以及空氣流量與煤漿流量之比Q＊和各浮選參數之間的關(guān)系。

49 、dimensionless oil recovery index───無(wú)因次采出指數

50 、First of all ,the gas discharge equations are obtained from the physical laws and by introducing the new scales ,the gas discharge equations can be simplified used the dimensionless variables.───其次針對其物理特性,引入了一系列的無(wú)量綱參量,在形式上對方程做了一定程度的簡(jiǎn)化。

51 、Keywords fire in a horizontal tunnel;reverse flow of smoke;genetic condition;dimensionless criteria;───關(guān)鍵詞水平巷道火災;煙流滾退;發(fā)生條件;無(wú)量綱準則;

52 、The template curves of dimensionless pressure derivative can clearly indicate Outer boundaries of various reservoirs, with their patterns distinctive and recognizable.───無(wú)因次壓力導數樣板曲線(xiàn)能夠清楚地反映各種油藏外邊界形態(tài)，曲線(xiàn)特征明顯，易于辨認。

53 、dimensionless coordinate───無(wú)因次坐標

54 、D index is also called formation drillability index (dimensionless).───指數也稱(chēng)地層可鉆性指數(無(wú)量鋼)。

55 、In this paper,some r esults of Hausdorff dimens ion associated with convergence were stated.───文章討論了一些與收斂性有關(guān)的維數結果.

56 、Predicting Horizontal Gas Well Deliverability Using Dimensionless IPR Curves───利用無(wú)因次IPR曲線(xiàn)預測水平氣井的產(chǎn)能

57 、A very useful tool for scale-up is the dimensionless group. This is the grouping of system variables so as to cancel out their dimensions.───在放大中使用的一個(gè)很有用的工具是無(wú)量綱數群。這是系統變量無(wú)因次化的一種組合。

58 、Dimensionless Fracture Conductivity: Better Input Values Make Better Wells───無(wú)因次裂縫導流能力:極佳輸入值得到極佳的油井產(chǎn)能

59 、dimensionless numbers───無(wú)維數

60 、It is not satisfactory from a dimensional standpoint, since the power to which we raise e must be dimensionless.───從量綱的觀(guān)點(diǎn)來(lái)看，它是不能令人滿(mǎn)意的，因為e的冪必須是無(wú)量綱的。

61 、The results show that the accuracy of the dimensionless correlation of heat transfer coefficient is the highest among the heat-transfer correlations and m...───建立反映傳熱機理的模型與計算式,開(kāi)展多相流非線(xiàn)性研究和傳熱數值模擬是未來(lái)的研究方向。

62 、dimensionless ratio───無(wú)因次比

63 、The Dimensionless Representation of Collection Efficiency of Cyclones───旋風(fēng)分離器捕集效率的無(wú)量綱表示

64 、Rapid identification and analysis of outer reservoir boundary using template curves of dimensionless pressure derivative───利用無(wú)因次壓力導數樣板曲線(xiàn)快速識別和分析油藏外邊界

65 、The numerical procedure has been derived in dimensionless form.───數值程序是按無(wú)因次形式推導的。

66 、dimensionless quantity───無(wú)因次值無(wú)量綱的量

67 、dimensionless glass transition───無(wú)因次玻璃化轉變

68 、dimensionless coefficient───無(wú)因次系數

69 、dimensionless scale───無(wú)因次比尺

70 、Snow to have goose hair heavy snow outside in succession satisfied several days the dimensionless cornfield overlays under very thick ice snow doing of softhearted dream.───外面下起了鵝毛大雪，紛紛揚揚了好幾天，無(wú)邊無(wú)際的麥田覆蓋在厚厚的冰雪之下，做著(zhù)的溫情的夢(mèng)。

71 、Optimum Design of Fixed Bed Reactor for Chloroethvlene with Simulated Homogenous Two Dimens inal Model───擬均相二維模型優(yōu)化設計氯乙烯固定床反應器

72 、The Emergency of Ancient Greek Aestheticism and its Value Dimen sionality--From Pythagoras to Socrates───古希臘審美主義的發(fā)生及價(jià)值維度--從畢達哥拉斯到蘇格拉底

73 、It also shows the effect of earthquake acceleration coefficient on dimensionless stabilizing force is remarkable, especially under high earthquake acceleration coefficients.───地震加速度系數對阻滑樁所需提供的加固力有明顯影響，且地震加速度系數越高則影響越顯著(zhù)。

74 、And the dimensionless model can be used as a reference for flotati...───文中建立的無(wú)維模型也可供其它細礦浮選過(guò)程參考。

75 、Keywords Dimensionless liquid production index;Water cut;Permeability anisotropy;Oil-water viscosity ratio;Influence;Regression analysis;───無(wú)因次采液指數;含水率;滲透率各向異性;油水粘度比;影響;回歸分析;

76 、dimensionless number───無(wú)因次數

77 、anonymous dimensionless group 1-4───無(wú)名無(wú)因次群1-4

78 、A New Method for Calculating Dimensionless Water Influx Rate───無(wú)因次水侵量計算新方法

79 、Application of Dimensionless IPR Curve for Production Potential Forecast in Horizontal Well───無(wú)因次IPR曲線(xiàn)在水平氣井產(chǎn)能預測中的應用

80 、Keywords micro deep drawing;size effect;dimensionless design;friction coefficient;───微拉深成形;尺度效應;無(wú)量綱設計;摩擦系數;

傅里葉數fo名詞解釋?zhuān)?/h2>

定義：傅立葉數表征兩個(gè)時(shí)間間隔相比所得的無(wú)量綱時(shí)間。

Fo=aτ/l2

傅里葉數fo名詞解釋?zhuān)?/h2>

傅里葉數（Fourier number）也稱(chēng)為傅里葉準則數（Fourier criterion number）或傅里葉無(wú)因次數（Fourier dimensionless number），是一個(gè)無(wú)量綱的數，通常用于描述熱傳導、**、對流等物理過(guò)程的特征。

傅里葉數的定義為：Fo = αL2/τ，其中：

- α 是熱傳導系數（thermal conductivity），表示熱量在介質(zhì)中傳遞的速度；

- L 是特征長(cháng)度（characteristic length），表示物理過(guò)程發(fā)生的空間范圍；

- τ 是時(shí)間（time）。

因此，傅里葉數 Fo 表示單位時(shí)間內，通過(guò)單位面積的熱量與特征長(cháng)度平方的比值。它反映了熱傳導過(guò)程的快慢程度，Fo 越大，熱傳導速度越快，反之亦然。

傅里葉數在熱傳導、**、對流等物理過(guò)程中具有重要的應用，可以用來(lái)描述這些過(guò)程的特征和規律，以及設計相關(guān)的設備和工藝。