Launched from a standard runway, a hypersonic aircraft could fly faster than Mach 5 to strike anywhere in the world within two hours.

从标准跑道起飞，高超音速飞机能以5倍音速在两小时内出击在全球任何地点。

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This allowed the system to be distributed over multiple processors, either using shared memory directly as in most Mach messages, or by adding code to copy the message to another processor if needed.

这种设计有利于把系统分布到多个处理器之上，既可以像大多数Mach消息那样直接通过共享内存来传递，也可以在必要的时候增加一点代码把消息复制到别的处理器上。

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Mach messages are used for a lot of things in OS X, not least of which is the delivery of events from the user.

在OS X里Mach消息被用于很多地方，不仅仅是传递用户事件。

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It reached Mach 4.8 in less than half a minute powered by a solid rocket booster.

NPR: Experimental Air Force Aircraft Goes Hypersonic

With Boyd Rankin on international duty for Ireland, Tahir seized his opportunity after last week's confidence boost in dismissing Andrew Strauss, Matt Prior and Andrew Flintoff in a warm-up mach for England's Ashes squad.

BBC: Joyce victim of freak dismissal

Mach is a measure of the ratio of the velocity of an object, in this case a plane, to the velocity of sound, which equals Mach 1, or 761.2 miles per hour.

FORBES: Magazine Article