Aside from the presence of Mach ports on Darwin, the two are remarkably similar.

除了Darwin上还存在的Mach端口，这两者相当的相似。

youdao

Components of OAT on MACH 11 setup.

MACH 11设置上的OAT组件。

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You can do a lot on OS X without getting down to the Mach layer.

你可以在OS X上做很多事而不需要深入到Mach层。

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Apparently a small company named Mach 5 is stepping on their toes with a new "Profit Pod" device that can track arcade machines for money put in and tickets spat out, and then wirelessly transmit the information to a PDA or notebook computer.

ENGADGET: No POD for you: Apple keeps close tabs on brand name