Based on test data and research achievement available in literature, the fatigue parameters of welded boxes of overhead and gantry cranes are recommended.
根据已有的试验和研究成果，总结推荐了桥门式起重机焊接箱形梁的疲劳参数取值。
The series of electric control devices developed in 70s for overhead travelling and gantry cranes has several shortcomings.
70年代我国统一设计的桥式、门式起重机系列电控设备存在不少缺点。
The series of electric control devices developed in 70s for overhead travelling and gantry cranes has several shortcomings.
70年代我国统一设计的桥式、门式起重机系列电控设备存在不少缺点。
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