two-dimensional pressure

Through two methods measuring cutoff thrust and pressure of com-bustion chamber when testing liquid propellant rocket engine on ground, cu-toff impulse as simulated altitude condition is obtained. These methods are revie-wed simply, too.

本文叙述在地面条件下试验液体火箭发动机时，通过测量发动机后效段推力与测量发动机燃烧室压力两种方法来求得模拟高空后效冲量，并对这两种方法作简单评论。

Extensive experiments of steam-water two-phase flow and boiling heat transfer in a vertical helically-coiled tube were carried out in high pressure water test loop of Xi an JiaotongUniversity.

报导了在西安交通大学高压汽水实验回路上进行的垂直螺旋管内汽水两相流传热试验研究。

Two correlations for the number of theoretical plate ( Nmin) and gas pressure drop(? p) were established with least square method based on the experimental data.

在实验基础上应用最小二乘法建立了旋转填料床的传质、压降实验关联式。

The steam-water two-phase flow instability in vertical parallel pipes was studied experimentally in the high pressure steam-water test loop.

在高压汽水回路上对垂直并联管中汽液两相流不稳定性进行了试验研究。

Nolte founded two-dimensional fracture analysis model and analyzed drawdown pressure curve after hydraulic fracturing by use of the model.

1979年Nolte建立了分析压降曲线的二维裂缝模型，由于二维裂缝分析模型假设条件与现场实际差别较大例如其假设缝高固定不变，不能准确地计算出裂缝几何参数和压裂液参数。

A comparative assessment between HCFC-123 and CFC-11, the two kind of refrigerants, has been carried out by simulation calculating the theoretical cycle performance indexs including pressure ratio, volumetric refrigerating capacity and coefficient of performance in this paper.

通过模拟计算压力比、单位容积制冷量和理论循环制冷系数等性能指标，对比评价HCFC－123和CFC－11两种制冷工质。