It is often convenient to use the mole to describe the amount of substance.
用摩尔来表示物质的量通常是很方便的。
Thecalculation of them is the most important part. Then introduced the new unit'mole', which is used to described the amount of substance.
最重要的定义是摩尔的介绍，一个用来描述物质质量的国标单位之一。
What's more, although I was getting an adequate amount of calories, it was hard to convince myself that the chalky substance I just drank was dinner.
更难的是，虽然我正获取的是合适分量的卡路里，却很难让我自己相信这种我刚喝下去的白垩色物质就是我的正餐了。
Some pandemic vaccines contain an adjuvant to reduce the amount of virus antigen to be used (an antigen is a substance capable of stimulating an immune response).
有些大流行性流感疫苗含有佐剂以便减少病毒抗原的使用量(抗原是能够刺激免疫反应的一种物质)。
What's more although I was getting an adequate amount of calories it was hard to convince myself that the chalky substance I just drank was dinner.
更难的是，虽然我正获取的是合适分量的卡路里，却很难让我自己相信这种我刚喝下去的白垩色物质就是我的正餐了。
Or a radioactive substance may be disintegrating at a known rate and we may be required to determine the amount of material present after a given time.
又如，某种放射性物质可能正在以已知的速度进行衰变，需要我们确定在给定的时间后遗留物质的总量。
Chromatogram is proportional to the amount of that substance in the sample.
色层析分析谱图中的峰面积与样品中物质的量是成正比的。
In the case of quantitative analysis of impurities accuracy should be assessed on samples (of drug substance or drug product) spiked with known amount of impurities.
对于杂质的定量分析，应使用以已知数量杂质增敏的样榀来评估准确度。
The units of temperature, pressure, and amount of substance cancelled out.
温度、压力和物质的量的单位相消。
An analytical method for determining the amount of a substance released during electrolysis in which the number of coulombs used is measured.
库仑测定法，电量测定法：一种分析方法，用测量消耗的库仑数来测定电解过程中释放出的物质的量。
Saturated: After the maximum amount of a substance has dissolved, such that no more will go into solution, we say the solution is saturated with the substance.
饱和：已经溶解最大量之溶质之后，而此溶质不再进入溶液中，我们称此溶液已达饱和。
The method is simple in operation, short produce period, low in cost and with less amount of chain transfer substance.
该方法操作简单，链转移剂用量较小，生产周期短，成本低。
In this paper, the concepts and the applications of amount of substance and extent of reaction have been discussed.
本文对化学教学中的物质的量和反应进度的概念和应用进行了讨论，并对它们之间的联系和区别进行了辨析。
Solubility: Solubility of a substance in a certain solvent is defined to be the maximum amount of the substance which will dissolve in a given quantity of the solvent.
溶解度：在一特定的溶剂中，一物质的溶解度定义为：此物质溶解在一已知的溶剂之最大量。
The more common Lethal Dosage (LD) tests are used to determine the amount of a substance that will kill a predetermined ratio of animals.
通常的致死剂量测试(LD)被用来确定能够一次杀死动物的几率。
In this paper some formulas to calculate the mass percentage of all sort of compound in and rock salt and mirabilite were created on the reaction rule of equal amount of substance.
本文以等物质的量的反应规则建立了岩盐、芒硝中各种化合物的质量分数的计算公式。
Thus, the teaching and learning of the concept 'amount of substance' receive a growing concern by researchers over recent decades.
正因如此，近年来物质的量概念教学的研究受到教育研究者们广泛的重视。
An antagonistic bacterial strain B21 was isolated from the leaf, could produce large amount of antimicrobial substance, which inhibited the growth of Botrytis cinerea Pers.
本研究以从植物叶片上筛选出的具有强烈抑制番茄灰霉病生长并产生大量颉颃物质的颉颃细菌B21为实验材料。
The original plan was to encase a small amount of a radioactive substance in a protective steel container.
原先计划是要将少量的放射性物质封存在一个钢质防护罩中。
The results show that it is a effective means to concentrate trace amount of volatile organic substance in GC analysis.
实验表明，该装置是痕量挥发性有机物浓缩富集-气相色谱分析的有效手段。
Said inhalator comprises a substance reservoir chamber (27) and a metering chamber (34) receiving a defined amount of the substance.
所述吸入器包括接收有限量物质的配量室（34）和物质存储室（27）。
The influence of exogenous ground substance affected on NRA increased with the decline of amount of nitrogen applied.
外源基质对NR活性的影响随施氮量提高而下降。
The mass of the laser-ablated substance descends along with increasing the amount of action pulse.
激光烧蚀样品质量随着脉冲个数的增加而递减。
The mass of the laser-ablated substance descends along with increasing the amount of action pulse.
激光烧蚀样品质量随着脉冲个数的增加而递减。
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