... 救生阀急救箱 raft kit 救生浮具；打捞浮具 buoyancy apparatus 救生浮具浮力试验 buoyancy test for buoyant apparatus ...
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... 救生浮具 buoyancy apparatus 救生浮具 life floats 救生浮索 buoyant life line ...
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... crag悬崖峭壁 craleyfloat救生浮具 crampframe弓形夹 ...
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短语
救生浮具标记
marking of buoyant apparatus
救生浮具试验
buoyant apparatus tests
救生浮具救生筏
life float
救生浮具浮力试验
buoyancy test for buoyant apparatus
救生浮属具
equipment of life float
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life floats
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buoyant apparatus
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