Piping runs joined to the flanges must be installed in a straight line position to the flange to avoid stress at the flange due to misalignment.

如果管道要联接到法兰上，必须以直线方向安装到法兰上，避免由于没有对准而对法兰产生压力。

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Besides, even though none of the equipment will actually be installed, it will still take at least three spacewalks to get it all in position to be ready when needed.

这个之外，即使没有将这些设备安装，也要举行三次太空行走是她们就位以应对于将来的需要。

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Valves should be installed with the disc in the closed or almost closed position. This will prevent damage to the disc sealing edge.

安装阀门时，蝶板应该处于关闭或几乎关闭的位置。这是为了防止蝶板密封装置受到损坏。

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