Which has fire overhead travelling crane series fantasy novel An Shun sell?
火天车系列幻想小说安顺哪有卖?
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Travelling crane drags heavy parts right over heads of factory workers.
起重机拖动着沉重的部件,在工厂的工人头上晃来晃去.
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Besides, overhead travelling crane bump - shielded system and alarm devices is designed.
此外还设计了钻井系统的天车 防撞 及报警装置.
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