amount of a substance的意思|示意

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)。

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。

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。

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。

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）。