?舵颈圈    rudder trunk collar

?上部舵杆,舵头材    rudder upper stock (or rudder head)

?舵轭    rudder yoke

?艉水线,航行,航程    run

?偏转,溢流    run out

?小型马达艇    runabouts

?梯级    rung

?运转    running

?运转配合,可动配合    running (or working) fit

?运转中平衡试验    running balance test

?动滑车    running block

?运航成本    running cost

?航行灯    running light

?坞外修理    running repair

?动索    running rigging

?消耗品    running store

?动钢索    running wire

?流出量    run-off

?级进变速装置    run-through change gear

?破裂试验    rupture test

?接头    rust joint

?粗接    rustic joint