查询词典 jet

In order to obtain excellent gas jet from laser's nozzle, a combinatorial supersonic laser jet cutting nozzle is designed.

为了得到具有优良的射流流场激光喷嘴，设计了一种组合型超音速喷嘴，建立了该喷嘴计算流体动力学分析所需的控制方程。

Work on pressure-jets in preparation for the Jet Gyrodyne and the Rotodyne led Fairey to believe that a rotor-tip drive would be ideal for the Ultra-light Helicopter, and preliminary studies showed that a tip-jet-driven version could be designed to do better than meet the requirements.

飞机上工作的压力，在准备射流Gyrodyne和旋飞领导费尔雷相信，转子尖驱动器将是最理想的直升机超轻型，并初步研究表明一个举报喷气驱动的版本可用于做更好满足要求。

WATER IN THE FORM OF A JET IS ONLY REQUIRED TO COMBAT A FIRE THAT CANNOT BE REACHED BY A SPRAY OR WHERE THE FORCE OF A JET IS NEEDED TO BREAK UP MATERIAL IN A DEEP SEATED FIRE SUCH AS MAY BE FOUND IN A HOLD FIRE.

水柱灭火只是用来灌救水雾灭火不能达到之火警，或是须要一支强的水柱去冲散位於深处的著火物体，例如货舱火警。

The invention aims to solve the problems of the prior W-shaped flame boiler adopting overfire air nozzles in direct flow structure form, such as higher carbon content in fly ash resulting from the fact that the gas and pulverized coal in the jet flow of the conventional boiler are unlikely to be mixed with those between adjacent jet flows due to the poor lateral diffusion capacity.

本发明的目的是为解决现有W型火焰锅炉燃尽风喷口采用的都是直流的结构形式，其射流的横向扩散能力较弱，无法与相邻射流之间的烟气和煤粉混合，造成飞灰含碳量偏高。

Jet flow ; rocket motor ; double nozzle jet ; computational fluid dynamics

燃气射流；火箭发动机；双喷管射流；计算流体力学

The present objective is to evaluate the possibility of installing pump jet on fishing vessels, including simulation of flow field near the pump jet, comparison with traditional propeller on issues of tangling, and life-cycle cost for typical Taiwanese fishing methods.

本研究目标是评估泵喷推进器用於渔船上的可行性，包括泵喷推进器出入口流场模拟、泵喷推进器与传统螺桨绞缠性能的比较、台湾渔船使用情形下成本效益之评估，也针对一般的台湾渔船，进行改用泵喷推进器的初步线型与安装设计并比较其静水性能与稳度影响。

In this paper, an idea is presented about a larger pressure of percolation flow existed in a part of rock by a high-pressure jet, and the pressure has great effect on the rock fragmentation with jet. A model of calculating the pressure is established.

本文提出了射流作用下岩石局部范围具有较高渗流压力的思想，并认为该渗流压力大小对射流破岩有重要影响，建立了该渗流压力的计算模型。

The numerical results of water jet breaking rock agree with the experimental conclusion. A valid approach to the process of water jet breaking rock sh...

数值计算的结果较真实地反映了水射流破岩过程中岩石的动态响应以及水射流动力学特性的演化过程，并与相关试验规律吻合良好，这表明该分析方法是有效的，可用来指导高压水射流破岩理论的进一步研究及应用。

Based on the study on the mechanism of mechanical tool cutting rock with water jet assisted, the optimal jet position relating to pdc bit is attained.

本文正是从这一思路出发，对水射流辅助PDC刀具切割破碎硬及特硬岩石进行了理论和实验研究。

The high-pressure jet is applied widely to the fragmentation of the rock in drilling engineering, but the mechanism of rock fragmentation with jet is not very clear by now.

高压射流辅助破岩在油气井钻井工程中得到广泛应用，其破岩机理还很不明了。

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％。