“常量”造句

若干研究已经发现了两个重要常量。
Two significant constants have been found in a number of research studies.

其值不变的量称为常量.
A quantity whose value remains unchanged is called a constant.

在无外力时,质心的速度是常量.
The velocity of the center of mass is constant in the absence of external forces.

• #常量