the principle that the total linear momentum in a closed system is constant and is not affected by processes occurring inside the system
双语例句
1
Conservationsof mass, momentum, and energy are used to determine liquid film thickness and temperature.
液膜厚度、速度与温度等参数通过求解液膜的质量守恒、动量守恒、能量守恒方程获得。
2
Based on the mass and momentumconservationsof fluid, the mathematical model of Two-Piece plunger lift and single-string pig lift which unload by pressing fluid level down is derived.
基于流体质量、动量守恒导出了单管球塞气举和分体式柱塞气举采用“压低液面”卸载的数学模型；
3
The thin film is divided three regions:The governing equations of mass, energy and momentumconservations were established based on the simplification and reasonable assumptions on the PHP system.