[船] 承舵柱
... 撑篙舟 pole boat 承舵柱 rudderpost 承受发动机的内龙骨 engine keelson ...
舵柱
... 舵合叶rudderhinge 舵柱rudderpost 竞赛艇racingboat ...
舵机轴承
rudderpost:
rudder + post