Familiarity (for the XML programmer) : XML processing in XJ is consistent with open XML standards.

熟悉(对于XML程序员)：XJ中的XML处理与开放式XML标准相一致。

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The portable programmer, which plugs into the DC port under the locks, can also open any door, even providing power through that port to trigger the mechanism of a door lock in which the battery has run out.

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Like other open source software, such as the operating system Linux, Firefox's code is freely available for any programmer to examine and improve.

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