单词	raunge
释义	raunge 🌏ra
随便看	double variant double variation double variation method double variety double vault double vaulted arch bridge double vault tunnel double vbelt double v belt double V-belt double V butt joint double-v butt joint double V butt weld double-V butt weld double v butt welt double v clutch double v clutchdouble cone clutch double-V connected rectifier double v die Double vector description double vector product doublevee double vee double-Vee double-vee butt joint