用手晃动、拍击、拧动零件时用力要适当,防止损伤部件,尤其是检查线路接头与紧固件松紧度时,要（）拧动。

作者: tihaiku 人气: - 评论: 0

问题用手晃动、拍击、拧动零件时用力要适当,防止损伤部件,尤其是检查线路接头与紧固件松紧度时,要（）拧动。

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解析 P90T399

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