马赫

With high temperature and high pressure in nozzle of wind tunnel, the effect of variable specific heat on nozzle design must be considered.

本文针对超音速、高超音速喷管内马赫数、温度变化剧烈的特点，研究了比热容变化对设计喷管型面产生的影响。

As mentioned before, Michael Schumacher won in 1998 and the German also took two more wins here at the wheel of a Prancing Horse car, while Rubens Barrichello was also victorious.

如上面提到的，除了1998年外，舒马赫驾驶跃马战车还在亨格罗宁拿过两个分站冠军，巴里切罗在此亦有上佳表现。

Moving load ; Mach number ; ground vibration ; finite element method ; thin layer element

移动荷载；马赫数；地基振动；有限元方法；薄层单元

On the other hand,avalvetrim exit velocity head lower than 480 kPa will have a veryhighnoise level if the valve outlet mach number is notlow.

另一方面，当阀门的阀门内件节流出口速度头低于480KPa时，如果阀门的出口马赫数不处于较低的水平，阀门仍会有较高的声压级。

Also,this article willshow thathaving a trim exit velocity head lower than 480 kPa willstillgenerate a very high valve noise level if the valve outletMachnumber is high.

另外，这篇文章显示在流体速度头低于480KPa，但阀门出口流体速度马赫数较高的情况下仍会产生相当高的声压级。

This paper presents design and experimental resultsfor a high performance single stage transonic fan with design pressureratio 2.3 and design efficiency 0.88 at high tip speed 510m/s (relativeMach number reaches 1.72) and low aspect ratio.

本文介绍一高性能单级跨音速风扇的设计与试验结果。该风扇设计压比2.3，设计效率0.88，具有高切线速度510 m/s(相对马赫数达1.72)和低展弦比。

The use of two plane thrust of 20,000 pounds for the General Electric CF34-10E engine as a power source, the maximum cruise speed of Mach 0.82 (about 890 kilometers / hour), loaded with a maximum range of circumstances to achieve the 2300 sea miles (4262 kilometers).

该飞机采用两台推力为20000磅的通用电气CF34-10E发动机作为动力源，最大巡航速度0.82马赫（约890公里/小时），满载情况下的最大航程达到2300海里（4262公里）。

Summer was going too fast and the autume came. The winter was so cold, I sleep in the snow but can't feel it any.

马赫尼 是个翘课的学生渴望 adventure of life 遇上了一个完全扯不上半个重点的老人低咕著老调重弹吹嘘已逝的青春年代。。。

Omega invites some celebrity to take vivid ambassador, like we are familiar with first-level equation champion Schumacher, figure skating champion Chen Lu, Swiss top-quality tennis player Xindi Si, sailing ship match Peter .

欧米茄更邀请一些名人作为形象大使，如我们所熟悉的一级方程式冠军舒马赫、花样滑冰冠军陈露、瑞士头号网球手辛迪斯、帆船赛手彼得。

Results show that the performance of this VCRT basically reaches the original objective,which indicates that a convergent-divergent blade passage in the high pressure rotor and a convergent-divergent meridian plane of the VCRT are suitable for the VCRT.

结果表明，对转涡轮各方面性能基本达到了设计目标，说明高压动叶采用收扩型叶栅通道且整个涡轮子午流道也采用收扩结构的设计可以获得满意性能；三排叶片仍有改进余地，即涡轮效率还有进一步提升的潜力；高压动叶出口沿整个叶高均为超声速，出口马赫数节距平均值在1.4~1.6之间；高压动叶尾缘斜激波强度以中展为中心向两侧递减；涡轮性能随出口背压的增加而下降；涡轮出口背压的变化对高压转子性能基本没有影响，但对低压转子性能的影响较大。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐