... 到底 what on earth; what in the world; in the end 发生 to happen; to occure; to take place 背景 background ...
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to occure
对发生血
以上为机器翻译结果，长、整句建议使用 人工翻译 。
When the galloping occure, the transmission line vibrates up and down with low frequency, high amplitude and a great amount of energy, which causes great damage to the transmission line.
这种形式的舞动，属于驻波舞动。导线舞动时作周期性上下摇摆，其频率低振幅高而且能量大，有较强的破坏作用。
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