查询词典 mach

During high-speed flight only the advancing blades of each rotor generated lift; this off-loaded the retreating blades and thereby eliminated the aerodynamic restrictions caused by blade-stall and the high mach number effect of the advancing blade tip.

在高速飞行只有每个转子叶片产生升力推进，这卸下撤退的刀片，从而消除了刀片失速和高马赫数前进叶尖数效应所造成的空气动力的限制。

My s to mach palls with it.

这东西我吃腻了。

His team was asked to design a Mach 2 2.5 aircraft, which was then, and probably still is, a nontrivial task-especially when the objective is to create a "cheap" lightweight aircraft. Consider that the force required to overcome drag quadruples when doubling the speed, and what impact that has on aircraft weight.

要知道当飞行速度由单音速变为双音速时，空气阻力会增加至原来的四倍，考虑到因此所需要的动力，及其对机身重量的影响，满足这样的需求，即使是在今天也绝非易事。

This oblique configuration redistributes the shock waves that pile up in front of a plane at Mach speeds and cause drag.

这种倾斜的外形把超音速飞行时集中在飞机前部并形成阻力的冲击波重新分布。

The invention discloses an optical-fiber all-optical code converter, comprising a temperature control circuit as well as optical-fiber Mach-Zed interferometer, heat sink, semiconductor refrigerator, thermosensitive resistor and radiator, where the interferometer is composed of two cascaded 3dB couplers on the heat sink, the relation between length difference delta L of two arms of the interferometer and generated delay time difference delta T is that delta L=c.delta T/n, where c is light velocity in vacuum and n is refractive index of optical fiber; the thermosensitive resistor is used to detect temperature of interferometer, the temperature control circuit is used to compare feedback voltage of the thermosenstive resistor with a given voltage to regulate working current of the semiconductor refrigerator, and the semiconductor refrigerator refrigerates or heat two arms of the interferometer by the heat sink.

本发明公开了一种光纤型全光码型转换器，它包括温控电路和位于密封盒内的光纤型马赫-泽德干涉仪、导热热沉、半导体制冷器、热敏电阻以及散热片；干涉仪由位于导热热沉上的二个3dB耦合器级联而成，两臂的长度差ΔL与产生的延时差ΔT之间的关系为ΔL＝c。ΔT/n，c为真空中光速，n为光纤折射率；热敏电阻用于对干涉仪的温度进行探测，温控电路用于比较热敏电阻反馈的探测电压和设定电压，对半导体制冷器的工作电流进行调节，半导体制冷器通过导热热沉对干涉仪两臂同时进行制冷或加热。

I flew to Mach 1.2, refueled from a tanker, and performed a few flutter tests.

我飞到了1.2马赫，从一架加油机那里加了油，并且进行了一些颤振试验。

I flew to Mach 1.2 refueled from a tanker and performed a few flutter tests.

我飞到了1.2马赫美国华尔街英语，从一架加油机那里加了油，并且进行了一些颤振试验。

During reentry from a 266,000 ft (50.4 mile, 81.1 km) apogee, the X-15 yawed sideways out of control and went into a spin at a speed of Mach 5, from which the pilot never recovered.

在从二六六零零零英尺（50.4英里，81.1公里）远地点再入中，X - 15 yawed侧身失控，变成了一个旋转的马赫5，从这些试验没有恢复的速度。

Moreover, Soviet aircraft designers in the 1960s had significant experience building delta-shaped aircraft, which proved an efficient means of achieving Mach 2, and TsAGI, of which Andrei Tupolev was a graduate, had developed extensive data about such designs.

然而，60年代的苏联工程师已经拥有三角翼布局的大量设计经验，这一布局对实现2倍因素有着至关重要的作用。

Moreover, Soviet aircraft designers in the 1960s had significant experience building delta-shaped aircraft, which proved an efficient means of achieving Mach 2, and TsAGI, of which Andrei Tupolev was a graduate, had developed extensive data about such designs.

苏联中央流体动力研究所（图波列夫早年深造的地方）已经掌握了这种设计的详细数据，经典的例子是这一时期采用有尾三角翼布局的Mig-21和Su-15战斗机。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。