查询词典 mach.

In a steady internal flow the Mach number can only reach 1 at a minimum in the cross-sectional area.

在一个稳定的内部流动马赫数只能达到一在最低限度，在截面积。

The Concorde's delta wing made the plane's sustained cruising speed of Mach 2 possible.

协和飞机的三角翼飞机作出的持续巡航速度2马赫的可能。

Capable of Mach 2.35, it has variable sweep wings which can be set to 16 degrees of sweep during takeoff and landing, 72 degrees for high speed flight, and 45 degrees for mid-range operation; the dogtooth you can see in the outer wing section fits in to the inner wing section when in the 16 degree position.

他能够达到2.35马赫，拥有可变后掠翼，在起飞和降落的时候保持16度，高速飞行保持72度，中距离任务保持45度。外部的机翼尖端在16度时恰好能嵌入机翼内段。

Such a larger collection is certainly implied in the words II Mach., ii, 13, and the prologue of Ecclesiasticus.

这样一个较大的收藏当然是隐含在词二马赫。

The semiconductor optical amplifier- cross gained modulation wavelength converter in the core node is used to transfer the payload from the old label to the new label to achieve the label erasion and insertion.

基于此光标记系统，研究Mach-Zehnder调制器的消光比、半导体光放大器的偏置电流、接收模块的输入功率、泵浦光功率、探测光功率对误码率的影响，以及转换波长与转换效率的关系。

At first, numerical simulation are made on the temporal developing gas-phase mixing layer where the convective mach number is in the region of subsonic(0.5) and transonic(0.8). For the temporal problem where Mc is 0.5, researches where the computational field contains different numbers of initial disturbances(so-called n period problem) are made respectively, and vortex's types of evolution in mixing layer including different numbers of initial disturbances are investigated; For the temporal problem where Mc is 0.8, the distinct shock let structure is obtained, and its mechanism is analyzed at the same time.

文中首先对对流马赫数为亚声速(0.5)、跨声速(0.8)的时间发展单气相混合层作了数值研究，对Mc为亚声速单气相时间发展混合层，分别研究了计算域包含不同数目的初始扰动周期问题，考查了不同周期数的混合层中涡的不同演化方式；对Mc为跨声速的单气相时间发展混合层，得到了清晰的小激波结构，同时分析了小激波的形成机理。

The results show that the flow-field boundary augments with increase of flight altitude at the same flight Mach number and the same mass flow rate, and augments with the increase of mass flow rate at the same flight. At the same time, the combustion gas injection flow-field structures change greatly with the variety of flight status parameters.

结果表明，在发动机排气质量流率相同的情况下，高空时燃气射流流场的边界比低空大；相同飞行高度时，随着发动机排气质量流率的增加，燃气射流流场边界随之增大，同时射流流场的结构也有很大的不同。

The Mach number in the outlet of the choke is calculated,and the flowage can be decided.

计算出口处的马赫数的值，判别节流嘴内的流态，进而逆向求节流嘴上游的各参数。

The design point (Ma=4.5) is the optimization basis for the waverider forebody, and the problem of the best flow turning angle under various flight Mach numbers is comprehensively taken into consideration.

乘波体前体以设计点（Ma=4.5）为优化基础，综合考虑在各个飞行马赫数下的最佳气流转角问题。

The shelves groan with an array of gimcrack gifts from fans:a stuffed piranha fish.a ceramic.bull,a papier - mach replica of an Apollo moonwalkerHarry F.

架子因在一大批来自倾慕者们的小破玩意儿的压迫下呻吟：一个塞得满满的食人鱼…一个瓷器…一只公牛，一个纸型阿波罗月球行走者的复制品哈里F。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。