What are the requirements for safe crane operation?
安全吊车作业有什么要求？
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This crane operation is completed in driver's chamber.
该起重机动作操纵全部在司机室内完成。
Crane safety bulletins and topics of discussion related to crane operation.
吊车安全公告和有关吊车操作的讨论话题。
"Neither the crane operator nor his supervisors made sure the operation was being performed according to approved plans, " city Buildings Commissioner Robert LiMandri said in a statement.
WSJ: APNewsBreak: Operator cited in NYC crane collapse
应用推荐
模块上移
模块下移
不移动