water ballast main 压载水总管
ballast main line [船] 压载水总管
main ballast tank 主压载舱 ; 主压载舱主压载水舱 ; 主压载水舱
main ballast kingston 主压载水舱通海阀 ; 主压载水通海阀
main ballast 主压载
main ballast vent 主压载舱排气阀
main ballast flood valve 主压载水舱泛水阀
wrap around main ballast tank 环形主压载水舱
main ballast tank floood valve 主压载水舱通海阀
The elastic rigidity of rail pad and ballast stiffness of rail and clamping force of fastener are the main factors that cause the widening of gauge.
钢轨垫层和道床的刚度、轨刚度和扣件扣压力是影响轮轨之间作用力和轨距扩大的主要因素。
Ballast water is the main invasion way of alien aquatic organisms. The complex effects caused by the aquatic organisms via ballast water have attracted world wide attention.
外来海洋生物主要是通过船舶压载水入侵，造成的影响极其复杂，已经引起了世界各国的广泛关注。
We have used the ballast pump instead of the main sea water pump which was leaking , we are going to have the bad pump dismantled and repaired .
我们用压载水泵代替了漏水的海水泵，我们已准备将坏泵拆检修理。
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