A very useful quantity is the half-time for the reaction.
一个很有用的量是反应的半衰期。
Nothing in the world is more useful than increasing the quantity and quality of your results and the fact that one can excel in an area.
你的成果增量提效了，还有你擅长于某一领域的事实，在这个世界上没有其他事比这更有用了。
The sand transporting quantity is an important physical value and useful engineering parameter.
输沙量是一个重要的物理量和极其有用的工程参数。
By calculating the quantity of electric charge, and using the micro-explanation of the charge distribution, some useful conclusions have been obtained.
通过对疤上电量的计算，从电荷分布的微观解释出发，得出一些有益的结论。
The useful quality information can be gained by using of statistics, because the quality control deals with large quantity of data.
质量控制工作涉及到大量的质量数据，运用数理统计学的知识把这些数据进行整理、归纳就可以得到我们所关心的质量信息。
This method has been tested to be very useful in detecting and repairing cycle slip and in analyzing the quantity of observation data.
通过试验和实际观测资料的分析表明，该方法能准确的分析双差观测数据质量，可以在双差观测域中有效的探测和修复周跳。
This paper gives the method of batch quantity rule and analyzes the influence to MRP calculation and the order cost problem, provides the useful data with the enterprise decision maker.
本文给出了几种批量方法，分析其对MRP计算影响，分析订购成本问题，给企业决策者提供有用的数据依据。
BRC is made from copper of special refinement, which possesses strictly defined quantity of useful elements.
BRC是由经过特殊提炼的铜合成，它包含许多经过严密筛选的有用元素。
The formula for calculating the tension and quantity of steel on the basis of the model are useful in engineering design and further study.
根据该模型给出的钢筋拉杆拉力及钢筋用量计算公式可供工程设计及进一步研究参考。
For statistical purposes, a quantity of capacitors is often tested to produce useful data.
从统计的角度来看，常常需要测试大量的电容器以获得有用的数据。
For statistical purposes, a quantity of capacitors is often tested to produce useful data.
从统计的角度来看，常常需要测试大量的电容器以获得有用的数据。
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