LD_(50)是什么意思

网络释义

用法例句

This paper presents the calculated method of the minimum reflux ratio Rm when the state parameter of inputing material q is of any value.

该文得出了二元精馏计算中进料状态参数为任意值时最小回流比Ｒ＿ｍ的计算方法。

This paper analyzed the relationship between the minimum pressure angle or the touch stress in high join and the datum circle/rolling radius,and proposed the choice principles and methods of the minimum basic size of cam.

文章从机构最小压力角及高副接触应力等2个方面分析讨论了基圆半径及滚子半径与它们的关系,并提出了凸轮机构最小基本尺寸的选择原则方法。

A minimum ring-band mathematical definition :In the done ring-band, there are at least two inner points and two outer points which scatter staggeringly on the circumference.

提出了一种最小环带的数学定义:作出的环带上存在至少二个内点与二个外点在圆周上呈交错排列,以此定义作为搜索结束的准则,给出了一种计算最小环带的数值算法:以交错排列的四点作环带,不断用新点取代旧点作环带直到所有的点都在环带内为止。

Wastewater minimization is an environmental problem through improving the process to fully minimize wastewater so as to save water resource.

废水量最小化是通过改进流程尽量减少废水生成量而节约水资源的环保课题。

The system risk is analyzed based on the minimum cut sets which are solved using the Semanderes algorithm.

利用Semanderes算法求出故障树的最小割集,对客滚运输安全进行定性分析。

The minimum cut sets(fault spectrums) are obtained by qualitative analysis.

通过定性分析,找出了抽油杆事故的全部最小割集—故障谱。