rudder trunk collar的意思|示意

美 / / 英 / /

舵颈圈，舵杆筒封圈

舵颈圈 ... 舵颈圈 rudder trunk collar 电子罗经 radio compass 浸水船况 riddled condition ...

舵杆筒封圈 ... 涡轮端气封圈 turbine air seal ring 舵杆筒封圈 rudder trunk collar 扩压器封圈 diffuser air seal ring ...