在起重机械的作业过程中，设备一旦发生故障，故障原因与故障点的查找是十分必要的。
In the process of lifting operations, equipment once failures, and checking the reason of fault and point of failure is necessary.
高空作业平台是起重机械的一种。
造船门式起重机是一种大起重量、大跨度、多功能、高效率的门式起重机械，专用于船坞（或船台）进行大型船体分段运输，对接及翻转作业。
Shipbuilding gantry crane a kind of gantry cranes of large lifting capacity, mare ultifunctions, and high efficiency which is dedicated for large hull staging, butt and flip operations in docks.
特种作业人员操作证，如电梯工，起重机械操作工，叉车司机，电工及焊接工等。
Special Appliance Operator Certificate such as lift Operator, Lifting Appliance Operator and Forklift Driver, Electrician and Welder, etc.
特种作业人员操作证，如电梯工、起重机械操作工，叉车司机，电工及焊接工等。
Special Appliance Operator Certificate such as Lift Operator, Lifting Appliance Operator and Forklift Driver, Electrician and Welder, etc.
特种作业人员操作证，如电梯工、起重机械操作工，叉车司机，电工及焊接工等。
Special Appliance Operator Certificate such as Lift Operator, Lifting Appliance Operator and Forklift Driver, Electrician and Welder, etc.
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