A composite state can also have a default transition with no operation.

组合状态还可以具有不带操作的缺省转换。

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This is the default transition and is taken when a successful log-in occurs.

这是缺省转换，当成功登录时，选择这一转换。

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When the machine reaches a final state within a composite state, it triggers the default transition automatically.

当机器到达一个组合状态内的最终状态时，它自动触发此缺省转换。

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The average time for a mortgaged home to transition from default to bank reposession in each of these three states has been over two years.

FORBES: The Foreclosure Crisis Isn't Over Just Yet

It's a nice little perk, and it should help NW owners transition into the Chrome Age quite nicely -- and speaking of which, Chrome is the default preinstalled browser once you boot back into Vista.

ENGADGET: Sony VAIO NW unboxing and hands-on