A higher than normal amount of a substance can be a sign of liver disease that may be caused by gallbladder cancer.
高于正常数量的物质可能是肝脏疾病的一个迹象，可能是由于胆囊癌所引起的。
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。
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。
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)。
A small amount. either of movement or substance.
一小点，动作或物质。
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。
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。
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 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）。
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）。
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