采用电缆拖车或安全滑触线受电。
安全滑触线是起重电气的一种。
钢体滑触线是起重配件的一种。
Steel body sliding contact line is a kind of lifting accessories.
他们在那一码线前放弃，在距离比赛胜利的触地得分只有一英尺的最后时刻放弃。
They quit on the one yard line.They give up at the last minute of the game one foot from a winning touchdown.
他们在那一码线前放弃，在距离比赛胜利的触地得分只有一英尺的最后时刻放弃。
They quit on the one yard line.They give up at the last minute of the game one foot from a winning touchdown.
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