JET MAIN的意思|示意

It is found that the star_shaped nozzle jet has a shorter initial section and slower velocity attenuation along the jet centerline in the main region than the round nozzle jet.

实验发现，星形喷嘴射流与普通圆射流相比，其射流初始段较短，但基本段内速度随喷距衰减的速率较低。

The main properties of jet spinning machine are introduced. The production technology and cost benefit of jet spinning are analysed and studied.

介绍了喷气纺纱机的主要性能，对喷气纺纱的生产工艺及成本效益进行了分析与研究。

For Kingfisher and its main competitor, Jet Airways, both full-service carriers, times are especially tough.

对于翠鸟航空及其主要竞争者捷特航空两大综合服务提供商来说，局势尤为严峻。

Formulas for calculation involve the important factors such as the varying diameters and velocities of the jet, velocities and thicknesses of the flying plates, as well as the strength of main armor.

计算关系式中，包含了连续变化的射流速度和直径，飞板速度和厚度，主装甲钢的强度等主要弹靶因素。

These devices have neither feedback pipes to control the main jet nor wall attachment effect of the jet on them.

这些装置没有反馈管来控制主喷流，也没有射流的附壁效应。它们的结构很简单可以自激振荡。

It is powered by two jet-turbine engines which operate both the five-bladed main rotor and, through a gearbox and shafts, a pair of propellers on two short wings.

它由两个喷气涡轮引擎提供动力，以驱动五个叶片的主旋翼，以及通过齿轮箱和连轴驱动在两边短翼上的一对螺旋桨。