One way of identifying a substance without resorting to fiddly chemical methods is to determine its density.
其中一种不用高精度的化学方法验证物质的办法就是确定它的密度。
One way to identify a substance without resorting to fiddly chemical methods is to determine its density.
要分辨一种物质，可以用密度测量法。而无须借助费事繁琐的化学分析法。
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。
The carbon-sulfur analyzer was corrected by mens of the pure chemical substance and was used to determine carbon content in titanium alloys.
采用纯化学物质对高频加热-红外检测碳硫仪校准，对钛合金中的碳量进行测定。
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。
Young sprouts of Hevea planting materials at various seasons were examined in relation to the water-retaining capacity and osmotic substance which were employed to determine optimum planting season.
测定橡胶树不同季节萌动芽的持水力及几种渗透活性物质，并以此判断最适宜的定植季节。
The substance of the world can only determine a form and not any material properties.
世界的实体只能规定一种形式，而不能规定物质的属性。
To determine whether a substance actually causes a symptom, it would be necessary to compare people who receive the substance with people who receive a control substance.
要判断某个物质是否确切地导致某个症状，必须把服食某物质的人同服食对照物质的人加以比较。
Besides, the present invention also can determine mass of substance.
此外，本发明还能测定物质的质量。
Under the circumstances, it is difficult for operator to seize the alarm substance and determine equipment failure in a very short period of time.
在这样的情况下，要求运行人员在极短的时间抓住告警实质，判断出故障设备有时是十分困难的。
The calculating analysis of titration without standard solution is a method that can be used to determine the concentration of substance titrated and titrant at the same time.
无需标准溶液的滴定计算分析能同时求出滴定剂与被测物质浓度。
Meanwhile, a new method is introduced to determine the combustion heat of the less combustible substances by abding a standard substance.
对用氧弹测定易燃物质燃烧热的压片方法进行了改进。
The research aimed to determine the content of polysaccharide in Zhi Qi fungal substance by anthrone-sulfate method.
用蒽酮-硫酸法测定芝芪菌质中的多糖含量。
A new method to determine insoluble substance in raw salt is presented.
提出一种测定原盐中水不溶物含量的新方法。
The parties shall be free to determine, by agreement, the law to be applied by the arbitrators to the substance of the dispute.
当事人可通过协议自行决定仲裁员就争议所适用的实体法。
The tests are designed primarily to determine whether a substance or preparation complies with an established specification for microbiological quality.
设计这些检测实验的主要目的是确定一种物质或制剂是否符合确立的微生物质量标准。
OBJECTIVE a RP HPLC method was established to determine related substance in ozagrel.
目的：建立反相高效液相色谱法测定奥扎格雷有关物质。
Then refinement and separation of the rutin reference substance was done. Identified the substance by the normal way. TLC and NMR. HPLC was used to determine the content of rutin.
采用既简便又的酸提碱沉法从槐米中提取芦丁，经过精致，分离得芦丁对照品，并用一般方法、薄层层析法、核磁共振法进行鉴定，高效液相法测定其含量。
Refinement needs substance to determine its way of presentation. They are equally important. If is like the pelt of tiger or leopard.
本质就像文采，文采就像本质，都是同等重要的。
The conditions and interfering factors of the acid base titration method which has been used to determine the active components of the petrol growth substance in the carbonating solution were studied.
研究了测定碳化液中石油助长剂活性组份含量的方法——酸碱滴定法的测定条件和干扰因素； 确定了石油助长剂活性组份为一元弱酸盐，测得了对应的一元弱酸的离解常数和用强碱滴定时的等当点。
The conditions and interfering factors of the acid base titration method which has been used to determine the active components of the petrol growth substance in the carbonating solution were studied.
研究了测定碳化液中石油助长剂活性组份含量的方法——酸碱滴定法的测定条件和干扰因素； 确定了石油助长剂活性组份为一元弱酸盐，测得了对应的一元弱酸的离解常数和用强碱滴定时的等当点。
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