"asternal ribs"
asternadv.在船尾;向船尾;向后地adj.在船尾的;向船尾的;向后的
asternal ribs假肋
astern nozzle尾部嘴
astern firing船尾射击
astern turbine倒车轮机,倒车汽轮机
astern running倒车
astern cylinder倒车涡轮壳体
astern-turbine倒车透平
astern powertest倒车性能试验
astern bevel gear后退伞形齿轮
astern synchro-倒车自动同步发送器