马赫

In this paper, a kind of feature extraction method suitable for a variety of features (step edge, line, roof edge, Mach band etc) is presented.

摘 要：文中给出一种适应于图像多种特征(阶跃边缘，线条，屋脊边缘以及马赫带等)的特征提取方法。

It has a top speed of 1.6 mach at low altitudes.

他最大速度为1.6马赫。

Mach two equals twice the speed of sound.

二马赫相当于声速的二倍。

It's fast! Estimated air speed exceeding Mach 3. Bearing south... I'm about to lose it.

它太快了，飞行速度超过3马赫，方向向南，我跟不上它。

Pilots have taken the airplane to an altitude of 30,000 ft/9,144m and a speed of Mach 0.65. Nearly 60 hours of flying have been completed.

在宇航员的操作下，梦幻客机可抵至9，144米的高空，在60小时的航程能可达到0.65马赫的飞行速度。

The aircraft has reached a maximum speed of Mach 0.90 and a top altitude of 47,000 ft/14,326m.

湾流G650可达到的最大飞行速度是0.90马赫，最大高度为47，000英尺即14，326米。

With space tourists reaching a top speed of Mach 3, the tortoises would have a hard time getting out of the way.

当太空旅行者达到三马赫的最高速度时，沙漠龟就很难爬开。

The middle panel is used to display the pressure as a function of distance down the nozzle, and the lower panel displays the Mach number (flow speed over local speed of sound) as a function of distance.

中东事务委员会是用来显示的压力作为一个功能的距离，降低喷嘴，以及较低的面板显示马赫数作为一个功能的距离。

This engine is suitable for an aircraft requiring high speed andsustained high Mach number cruise conditions

这种发动机适合要求高速飞行并且维持高马赫数巡航状态的飞机，在这些状态下，该发动机是以冲压喷气发动机方式工作的。

The classic sweptback shape enables jets to fly up to a speed of MACH 0.8(about 550 mph) and to slow down, using complex flaps and slats, to speeds safe for takeoff and landing.

经典的后掠翼形状的设计使飞机可以以马赫数0.8（大约550海里/小时）的速度飞行，并且使用复杂的襟翼和缝翼可以减速到安全起飞和着陆的速度。

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