precession of gyroscope陀螺: top; whipping top; gyroscope ...旋: whirl进: advance; move forward; move ...陀螺的旋进: precession of a top螺旋进料机: feed screw; screw feeder下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:陀螺旋进，即可在微信中查询翻译
