临界压力

It mainly studys the relations of upriver absolute pressure and flow, the relations of differential pressure and flow, the influence of testing pipe to the result.

主要研究了上游绝对压力与流量的关系，差压与流量的关系，声速流导和临界压力比与上游压力的关系，测试管对测试结果的影响等。

A SCF is defined as a substance above its critical temperature and critical pressure.

超临界流体是在其临界温度与临界压力之上的物质。

The formulas of the natural frequency, critical velocity and critical pressure were established by means of direct method .

根据Hamilton原理推导出流固耦合自由振动变分方程，采用直接解法求解自由振动的固有频率、临界流速和临界压力的解析解表达式。

Considering the inertial eccentric force and the weight of the drill string, we find that the axis critical force will be obviously less than that under the static state, which will be very important in drill engineering applications.

综合考虑钻柱惯性离心力和自重的影响，我们发现，在工作状态下，钻柱的临界压力会明显地小于静态时的临界力，这对实际的钻探工程来说具有十分重要的指导意义。

In Near-critical pressure region, critical quality and minimum heat transfer coefficient of post-CHF in inclined tube is less than vertical upflow tube.

在近临界压力区，倾斜管的临界干度和最小传热系数小于垂直上升管。

As the plastic region expansion on circle plate under extemal pressure is smaller than that under equal internal pressure, it can be qualitatively reckoned that the critical pressure of in-plane instability under external pressure is higher than that under internal pressure with the same axial displacement load.

由于外压增量导致环板内塑性区域扩展的范围小于等值内压的影响，因此可以定性的认为，在同样的轴向压缩量下，波纹管的平面失稳外压临界压力大于内压临界压力。

The results indicate that,the CPR of venturis with reasonable design and suitable technics is obviously higher than critical pressure ratio.

实验结果表明：设计合理、工艺合适的Laval喷管，临界背压比明显高于临界压力比，而且，比热容比越小，表面粗糙度等级越高，喉道直径越大，对应的临界背压比越大。

In order to study the characteristics of steam turbine varying conditions, it is important to study when the flow state change from the critical state to subcritical.

研究机组何时由临界工况变为亚临界工况，寻求临界压力的变化规律是研究汽轮机变工况特性的重要问题之一。

Firstly, based on the analysis of viscosity data, combined with other methods, a new method is proposed to calculate the viscosity of saturated vapor of halides. The calculation can be done on condition that the critical temperature, critical pressure, critical specific volume, molecular weight and the eccentric factor are known.

在理论研究上，一方面对于卤代烃的饱和蒸气粘度进行了研究分析，并结合其他理论推算方法的优点，提出了一种推算卤代烃的饱和蒸气粘度的新方法，该方法在已知临界温度、临界压力、临界比容、分子质量、偏心因子的情况下，便可以计算在有效对比温度范围内的饱和蒸气的粘度，本方法的适用范围是对比温度T〓在0.5-0.95之间，其对饱和蒸气粘度推算的平均偏差不超过5％。

The formula of the critical pressure ratio for safety valve is proposed.

提出了一种由喷管临界压力比确定安全阀临界压力比的计算公式。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了