?扶正力偶 righting couple
?扶正力矩 righting moment
?刚[构]架 rigid frame
?硬式救生筏 rigid life raft
?刚塑性崩溃 rigid plastic collapse
?硬式侧壳艇(气垫船) rigid sidewall craft
?刚体运动 rigid-body motion
?刚性,刚度 rigidity
?轮缘 rim
?未净钢 rimed steel
?绞刀 rimer (or reamer)
?绞孔螺栓 rimer bolt
?扶正力矩 righting moment
?刚[构]架 rigid frame
?硬式救生筏 rigid life raft
?刚塑性崩溃 rigid plastic collapse
?硬式侧壳艇(气垫船) rigid sidewall craft
?刚体运动 rigid-body motion
?刚性,刚度 rigidity
?轮缘 rim
?未净钢 rimed steel
?绞刀 rimer (or reamer)
?绞孔螺栓 rimer bolt
?未净钢 rimmed steel
?环,圈 ring
?带环螺栓 ring bolt
?环形舱壁 ring bulkhead
?环状肋骨 ring frame
?环规 ring gauge
?环缘接合 ring joint
?救生圈 ring life buoy (or life ring)
?环圈润滑 ring lubrication
?环圈润滑轴承 ring lubrication bearing
?油环 ring lubricator (or oiler)
?总环 ring main
?环板 ring plate
?环封 ring seal
?环插口 ring spigot
?环[形]阀 ring valve
?林格曼(排烟浓度) Ringelmann
?烟色[浓度]图 ringelmann chart
?[舯]横斜高 rise of floor (or deadrise)
?升流管 riser pipe
?升管 risers
?竖消防主管 rising fire main
?上缘部(木龙骨) rising wood (or rise wood)
?内河船 river boat
?内河炮艇 river gunboat
?内河轮船 river steamer
?内河汽船 river steamer
?铆钉 rivet
?铆钉头机 rivet and bolt header
?铆钉条材 rivet bar