音速

Unlike in subsonic and transonic speed regimes, the interference resulting from the finite size of the test region is seldom present.

不像在亚、跨音速区域，这里因试验段尺寸有限造成的干扰是难得存在的。

Unlike in subsonic and transonic speed regimes, the in terference result in g from the f in ite size of the test region is seldom present

不像在亚、跨音速区域，这里因试验段尺寸有限造成的干扰是难得存在的。

This is a subsonic impact sensor.

还有，这是一个音速感应器。

A computational aeroacoustics approach is applied to studying sound propagation in subsonic and supersonic nozzle.

采用计算气动声学方法研究了管道近音速区的声传播和声波与激波的相互作用问题。

Calculation of a subsonic case is performed first and shows good agreement with experiments.

计算结果显示，本文模型可准确地预测次音速汽泡流场。

In recent years, the most of new fighters and strategic missiles require fly with supersonic or hypersonic speed, and this make a lot of researchers think much of this kinds of phenomena.

近年来，新一代的战斗机及新型的战略导弹对超音速、高超音速飞行的要求，引起了国内外许多研究人员对这一类流动的重视。

The material is especially suitable for manufacturing the skin of supersonic speed transport aircraft and aerospacepiston and components of aero-engine with the working temperature of 650-1000℃.

特别适合于制造超高音速运输飞机和航空航天飞机的蒙皮以及航空发动机工作温度为650-1000℃的部件。

The new equation also has a great advantage over all of the previous vapor pressure equations including Wagner and Xiang equations in that it can be used to extrapolate extraordinarily from the usual range in which data are available both to the critical point and to the triple point.

利用第二音速维里系数与势能模型之间的关系，本文提出了一种新的拟合Lennard-Jones、Kihara和方阱等势能模型参数的方法，并得到了一些简单流体和制冷工质的相应势能参数。

The numerical method for the unsteady transonic flow is presented in the third part of this thesis.

在第三部分中，根据前面所提出的求解Euler方程的方法，利用非定常问题的边界条件，建立了计算跨音速非定常流动的计算方法。

For any further increase in velocity higher than the speed of sound, flight noise does not increase significantly.

在高于音速时，速度上进一步的增加并不会显著地增大飞行的噪声。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。