The bow protrudes from the bowline of large ships just below the waterline.
大型船只在吃水线下的部位，从前体纵剖线伸出一个球鼻形船首。
Three structure tests on bulbous bow of naval ships were conducted:static compressive test, heavy drop test and explosion test.
作为船体中比较特殊的双曲结构，舰船首部的球鼻首相关的结构试验规范很少。
The ships deck hoisting machinery such as bow gate, bulkhead valve, stern propeller and so on;
船舶用的甲板起重机械（绞车）、船头门、舱壁阀、船尾推进器等；
The ships deck hoisting machinery such as bow gate, bulkhead valve, stern propeller and so on;
船舶用的甲板起重机械（绞车）、船头门、舱壁阀、船尾推进器等；
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