An atom is the smallest characteristic unit of an element.

原子是元素最小的结构单位。

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While the COBOL run unit runs, the language element persists and is available to other programs within this thread.

当COBOL运行单元处于运行状态时，语言元素将保持不变，并且可用于同一线程中的其他程序。

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The basic unit of granularity for securing XML is an element.

保护XML的基本粒度单位是元素。

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Just as with Apollo, any modern venture would need some kind of CSM element for the astronauts, together with a departure stage - a propulsion unit that could accelerate the astronauts' vehicle out of low-Earth orbit, putting it on a path to the Moon.

BBC: Manned flight around Moon considered