查询词典 mach angle

The Mach number approaches unity at the virial shock, where the accreted gas is heated to the virial temperature.

在维里激波处马赫数接近1，气体在此处被加热至维里温度。

Using traditional soot print technique, the authors confirmed the existence of Mach reflection of gaseous detonation waves diffracting a wedge and obtained systematic experimental results.

以传统的烟迹技术记录胞格结构，证实了气相爆轰波在管道中与斜劈相互作用发生Mach反射，得到了系统的实验结果。

The warhead's delivery is also greatly simplified in over-land/sea covert delivery as compared to terminal target guidance and warhead fuzing at Mach 7 or higher speed.

这是因为虽然拦截弹道导弹极具挑战性，但确定其发射地点却并非难事，除非该导弹是由在公海的潜艇发射的，因而需要将遭受大规模报复袭击的可能性考虑在内。

A new optimal design of interleaves based on cascaded Mach-Zehnder interferometers is also presented. As compared with the two existing methods (digital signal processing methods and Fourier filters), the present method is simple and intuitive.

本论文分析了Mach-Zehnder干涉仪级联形式之间的关系，提出了通带平坦化分叉复用器的新型设计方法，与现有两种方法(应用数字滤波器设计方法以及傅立叶展开法)相比较，本文提出的设计方法直观、简单。

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。

The fabrication process of Mach-Zehnder modulators of poled polymer electro-optic waveguides has been developed.

研究了Mach-Zehnder型极化聚合物电光波导强度调制器的制备工艺。

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。

The two-acre Dunbar Community Garden in Little Rock has served as a model for several years.

几年来，坐落于小石城，占地两英亩的邓巴社区菜园树立了一个标杆。

Jerry points to the jacket hanging in the bathroom. It's ruined, and unwearable What?

杰瑞指着洗手间里挂着的夹克，毁了，不能穿了）什么？