讲电话永远不会超过30秒。
conservations of 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。
Phase 2 is designed to measure the effect of these conservations measures on the overall employee carbon footprint.第二阶段的目的是度量这些能源节约措施对总体雇员碳轨迹的影响。