n. 一辆黑色奔驰（亦称平治）牌汽车车主 the owner of a black Mercedes
一面曲一面平镜头 one curve and one plane lens
n. 万向接头, 平衡环, 平衡架 gimbal
万能手动平衡机 universal hand-bearing balancing machine
万能液压式自动平衡上底机 universal auto hydraulic balancing sole attaching machine
n. 三体船（有三个平行的船身）. boat built like a catamaran but with three parallel hulls instead of two
三值电平驱动 three level drive
三斗塑料平板缝纫机 sewing machine with 3-drawers and plastic flat cover
三棱平尺 triangle rule
三相平均电流表 three-phase mean current meter
三线白底平开关 three-wire white base flat switch
三线胶底平开关 three-wire rubber base flat switch
三角水平 trigonometric leveling
三重彩（足球普尔赌博法, 赌某些比赛中的平局数或主队赢数或客队赢数）. football pool competition in which people try to predict whether certain matches will be draws or wins for the home team or wins for the away team