释义 |
particle population 基本例句 粒子数 The necessary population inversion can be achieved in a variety of ways.我们可以用各种方法来实现这种必要的粒子数反转。 The incompressibility of the fluid is determined by introduction of a so-called particle density number.流体的不可压缩性是通过引人粒子数密度概念实现的。 |