In chapter 4, in order to ascertain its inherent eigenvalue and corresponding main vibration, modal analysis is first implemented for the jib structure of deck crane.
在第4章中先对甲板吊臂架结构进行模态分析，确定结构的固有频率和相应的主振型。
The lifeboat is recovered by a substantial deck crane mounted at the extreme stern of the ship.
救生船的复位是通过安装在船尾的甲板起重机来进行的。
The lifeboat is recovered by a substantial deck crane mounted at the extreme stern of the ship.
救生船的复位是通过安装在船尾的甲板起重机来进行的。
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