... 下声纳室 lower sonar room 下水设备 launching appliance 下水缘带 hydropsammon zone ...
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... 调头 Turning end to end 降落装置 Launching appliance 脱钩装置 Release unit ...
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boat launching appliance 小艇下水设施
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3the launching appliance shall be efficiently protected against corrosion and be so constructed as to prevent incendive friction or impact sparking during the launching of the survival craft.
3下水装置须予有效地保护以防腐蚀，而其建造须能防止在救生艇筏下水时发生磨擦起火或产生碰撞火花。
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