After repair, make sure that the phase sequence is correct.

修理之后，要确保相序正确。

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So it has the functions of measuring temperature and indicating the phase sequence.

既有温度检测功能，又有相序指示功能。

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Please see that the phase sequence is correct when connecting the wires in the emergency generator room.

在应急发电机室接线时，请注意相序一定要正确。

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