正分数

在定义了正分数后可以定义有正分数参加的数的加法和乘法，并可以验证运算律。

After defined positive fraction numbers , we might define addition and multiplication for positive fraction numbers , and then we can also verify operation laws .

烷烃分子Wiener指数、氢平均正电荷分数与折光率间的关系研究

The Relationship between Refractive Index of Paraffins and Their Hydrogen Partial Charges and Path Number of Wiener

现在是我们正需要分数的时候。

We 're at the point of the season where we need points .

从分子中正电荷分数探讨常用溶剂的极性顺序

Evaluation of Polar Order of Common Solvents from Fraction of Positive Charge in Molecules

每年这个时候正是考研分数公布之时，许多恋情都因此经受着打击。

When graduate school entrance exam scores are released every year at this time , many romantic relationships take a hit .

在一定的操作条件下，当原料气中正庚烷质量分数为6%时，正庚烷的渗透速率为2.5E-06mol/（m2.s.Pa），分离因子可达600左右。

For this composite membrane , the permeation rate of n-heptane was 2.5E-06 mol / ( m ~ 2 · s · Pa ) and the separation factor was about 600 when the operating conditions were given .

在算数中，曾经正整数和正分数能够满足所有的需求。

In arithmetic the positive integer and the positive fraction were sufficient for all requirements .

甲烷、乙烷、丙烷和正丁烷的体积分数都随吸收剂量的增加而增加；

The volume fraction of methane , ethane , n - butane and propane are increased with the increase of dose .

实验结果表明：在适宜的工艺条件下能生产出正构烷烃质量分数大于90%的重液体石蜡和-35低凝点柴油。

Diesel with freezing points lower than-35 ~ # and heavy liquid paraffin containing more than 90 % normal paraffins were obtained under proper processing condition .

甲烷的体积分数随剂量的增加而增加，而乙烷、乙烯、丙烷、丙烯和正丁烷的体积分数随剂量变化不明显。

With the increase of dose the volume fraction of methane is increased but the volume fraction of ethane , ethene , propane , propene and n-butane is not obviously changed .

随着正戊醇质量分数的增大，每一个温度下的微乳区及其最大增溶水量都逐渐向AEO-3/正戊醇/油角漂移。

The microemulsion region and maximum water content of microemulsion move to the corner ( AEO-3 / n-pentanol / diesel oil ) in the phase diagram with increasing mass fraction of n-pentanol .

正构烷烃摩尔分数对数曲线上有明显的折点，表明其经历过强烈的蒸发分馏作用，并引起厚油地化特征的差异。

The distribution curve of log molar fraction for n-alkanes had a distinct slope break point , suggesting that the strong evaporative fractionation happened in reservoirs and caused the differences of the oils .

绘制了复合表面活性剂（D0821/Tx-4/AEO-3）/正戊醇/柴油/水体系在不同温度及不同正戊醇质量分数时的一系列拟三元相图。

Phase diagrams of pseudo-ternary microemulsions consisting of mixed surfactants ( D0821 / Tx-4 / AEO-3 ) / n-pentanol / diesel oil / water system were plotted at different temperatures and different mass fractions of n-pentanol , and the properties of microemulsion system were discussed .