asternadv.在船尾;向船尾;向后地adj.在船尾的;向船尾的;向后的
astern steam turbine倒车汽车机
astern replenishment纵向补给
astern stopping test尾部停船时间
astern guardian valve尾部保护阀
astern guarding valve倒车隔离阀
astern maneuverability倒航操纵性
astern navigating bridge船尾部驾驶台
astern maneuvering valve尾部操作阀
astern of one's reckoning马传染性贫血病毒
astern replenishment system纵向补给装置