查询词典 jet

The velocity distributions and the surface pressure distributions of rotor blades and stator blades are acquired, furthermore, the efficiency and the thrust of the pump-jet propulsor are calculated, to lay foundation for the design and the optimization of pump-jet propulsors.

获得了泵喷射推进器转子叶片和定子叶片上的速度分布及其表面压力分布，并由此计算了泵喷射推进器的效率和所产生的推力，为泵喷射推进器的设计及其优化打下了基础。

To understand the flow noise generation mechanism of pump jet propulsor, this paper calculates the flow field of a torpedo pump jet propulsor,analyzes the field structure, and then calculates its broadband noise with Proudman theory.

随着理论计算方法的逐步完善以及计算资源的增强，对流动噪声进行理论数值分析已逐渐可行并成为深入了解声源传播途径、噪声产生机理及噪声声级预报的重要手段之一。

The rainband was located in the south of entrance of upper-level jet and in the north of low-level jet stream, which provide the good thermal and dynamical conditions.

长江中下游地区处于高空急流入口区右侧和低空急流左侧，高低空急流的这种有利配置为暴雨的产生提供了有利的动力热力条件。

However, in jet-propulsion the air is directed rearwards in a jet from the engine itself.

可是，在喷气推进器中，空气是从发动机本身，经喷管导向后部的。

The flow parameters such as the adhesion-wall effect of jet, penetration proportionlity of jet, momentum ratio, Reynold's number and incorporation time, which affect the mixing quality were analysed.

探讨了射流的流动状态如射流的附壁效应、穿透率、动量比及雷诺数等对混合的影响，并对混合时间进行了分析。

While this is being done, a supersonic nozzle injects a high-velocity gas jet in the area of the cut. The viscous molten material produced is then quickly stretched and cooled by the gas jet in a simple elongation process, to yield a disordered net of intertwined amorphous micro- and nano-fibres.

接著，以超音速喷嘴将高速气体注入熔融区，黏稠的熔融材料在简单的拉伸过程中藉由喷气快速冷却，产生一个非晶体微纳米纤维纠结成的网状结构。

Simply rotate the pistol head for patterns: jet to soft fan, gentle soaker, shower and perlator (soft jet mixed with air bubbles).

只需转动模式手枪的头：射流风机的软，柔和透雨，淋浴房，perlator。

The analysis shows that the snowstorm occured under the large scale circulation background of two-trough-two-ridge over the Eurosian continent, and resulted from the coupling of the upper level westerly jet and the low level southwesterly jet.

研究表明：这次暴雪发生在两槽两脊的大尺度环流背景下，是高空西风急流和低空西南风急流上下耦合作用的结果。

A black hole forms inside surrounded by a disk of accreting matter, and, within a few seconds, launched a jet of matter away from the black hole that ultimately made the gamma-ray burst. Here we see the jet breaking through the outer shell of the star, about nine seconds after its creation.

在太空中平均每天可以探测到一段出现一瞬间的高能量伽玛射线，而计算显示这秒钟的能量大约有一整颗恒星那麼大，天文学家称此为伽玛射线暴。

Technical parameter: Striation water jet commonly used current capacity: 0.8-1.8L/min, jet velocity

技术参数：线状喷射水流的常用流量：0.8-1.8L/min，喷射速度

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。