临界压强

分析认为：S4是模拟聚乙烯压力管道的快速裂纹扩展的一种有效方法。S4的临界压强是衡量管道承受压力的一个标准。

The experimental results verify that S4 is an effective method for simulating the rapid crack propagation in the pressure PE pipe and the critical pressure strength can be taken as a standard , of S4 to measure the pressure the testing pipe bears .

气粉两相流音速流出的临界压强比

Critical pressure ratio of gas-powder sonic flow

在此基础上，提出一种MPCVD系统中金刚石成核的动力学模型，并指出对应于最高成核密度有一临界压强存在。

Based on these results , a kinetic model for diamond nucleation in MPCVD system was proposed . The critical gas pressure corresponding to the highest nucleation density was also discussed .

通过计算分析，确定了裂纹快速扩展的临界压强和临界温度。

Critical pressure and the critical temperature of RCP are determined by calculation and analysis .

当系统残压小于临界压强时，铋的蒸发由热迁移过程控制。

The distillation is controlled by thermomigration when the system residual pressure is less than the critical pressure .

冰晶产生的临界压强为2.1atm，阈压随实验温度升高而增加，当总压超过阈压0.2&0.3atm时，冰晶大量产生。

The critical pressure is 2.1 atm . The threshold pressure increase as the experimental temperature increase . A large number of ice crystals are produced when the total pressure is 0.2-0.3 atm higher than the threshold pressure .

实验证实在锌的蒸发过程中存在临界压强，即在实验的残压低于此压力值时，锌的蒸发速率将不再随着残压的进一步降低而继续增加。

It is confirmed that the critical vapor pressure of zinc certainly exists in the process of evaporation , that is , zinc evaporation rate will not rise with the reduction of residual vapour pressure as it is below the critical vapour pressure .

基于微观角度分析了水流速度对混凝土的冲刷作用力和道床板冲刷的临界动水压强。

Based on the microscopic point of view , the scouring force in concrete generated by moving flow rate , and the critical hydrodynamic pressure of scouring concrete track slab was analyzed .