形: form; shape川: river; stream形传动: v-drive; z-type tra mi ion z; z-type transmission z形触点: v-type contact v形传动螺旋桨: z-peller z; z-propeller z形丑心善: have a rough look [appearance] but a good heart形传动轴推进柴油机: t-drive propulsion diesel engine形齿轮: generating gear形传动装置: z-drive z形齿: m-tooth形磁铁: horseshoe magnet; u-magnet u形池: z-form pool