词汇	Upper edge of the pelvis
释义	Upper edge of the pelvis 骨盆上缘
随便看	double helical bevel gear double helical chain double helical double helix double helical double reduction unit double helical double-reduction unit double helical gear double-helical gear double-helical-gear double-helical gearbox double helical gearherring-bone gear double helical gearing double helical gear milling machine double helical gear planer double helical gear pump double helical gear reducer double helical gears double helical heater double-helical heater double helical mixer double helical pinion double helical ribbon mixer double-helical screw mechanism double helical spring double helicalspurgear double helical spurgear