题目内容
The management level ensures that all functions within the designated area of responsibility are properly performed. The corresponding ranks include______ 管理级指保证正规地履行指定责任范围内的所有功能有关的责任级别，对应的职务包括________
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________是在开敞式救生艇基础上加设刚性的封闭顶盖，以保护乘员不受冷热侵袭。 ______is a rigid enclosed roof attached to the open lifeboat to protect the occupants from cold and heat.
很多船舶上的全封闭式救生艇均采用设在船尾的________，这样使用更加方便、安全. The fully enclosed lifeboats on ships use a_____ at the stern, which makes it more convenient and safe.
________是供抛投入水让落水者攀扶的个人救生设备。 _____is a personal life-saving device for people falling into water to climb.
船上的救生圈至少一半应带________.At least half of the lifebuoys on board should have ____
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