?三岛型船 three islander (or island vessel)
?三相 three phase
?三夹板 three ply wood
?三段变速齿轮 three speed gear
?三段空[气]压[缩]机 three stage air compressor
?三股索 three stranded rope
?三连曲柄轴 three throw crank-shaft
?三通旋塞 three way cock
?三通管 three way pipe
?三通阀 three way valve
?三线系统 three wire system
?[容许]三舱区浸水船 three-compartment ship
?三相 three phase
?三夹板 three ply wood
?三段变速齿轮 three speed gear
?三段空[气]压[缩]机 three stage air compressor
?三股索 three stranded rope
?三连曲柄轴 three throw crank-shaft
?三通旋塞 three way cock
?三通管 three way pipe
?三通阀 three way valve
?三线系统 three wire system
?[容许]三舱区浸水船 three-compartment ship
?三心电缆 three-core cable
?三维强度计算 three-dimensional strength calculation
?三极开关 three-pole switch
?三级压缩机 three-stage compressor
?三通旋塞 three-way cock
?三路开关 three-way switch
?帆前上角 throat
?咽喉螺栓 throat bolt
?喉深(焊接) throat depth
?帆前上角帆索 throat halyard
?喉厚(焊接) throat thickness
?节流,节流阀 throttle
?节流操纵 throttle control
?节流门 throttle gate
?节流阀 throttle valve
?节流式热量计 throttling calorimeter
?节流调速 throttling governing
?通梁 through beam
?全通梁 through beam
?贯穿螺栓 through bolt
?全通腋板,贯通托架 through bracket
?直旋塞 through cock
?直接联结 through coupling
?连通板 through plate
?连通内龙骨 through plate center keelson
?直通板列 through strake
?直道阀 through way valve
?曲柄半径 throw of crank shaft
?偏心距 throw of eccentric
?推力 thrust
