constant quantity

Should be opposite according to oneself the requirement of humidity, reasonable adjustment wet value of sparge quantity and constant.

要根据自己对湿度的要求，合理调节喷雾量和恒湿值。

This quantity is called the universal gas constant.

这个量叫做普适气体恒量.

Derived from the Newton law and Hertz equation, a dimensionless quantity, called the relative erosion strength, is found to be a constant during the impacting of an abrasive particle on ductile materials.

从牛顿定律和赫兹方程导出一个称为量钢一的量的相对冲蚀强度，发现在磨拉冲击韧度材料过程中保持不变。

In water supply system, water supply in constant pressure means that terminal pressure keeps constant all the time when the quantity of dispended water varies.

在供水系统中，恒压供水是指在供水网系中用水量发生变化时，出口压力保持不变的供水方式。

A quantity whose value remains unchanged is called a constant.

其值不变的量称为常量.