pancake平: flat; level; even; smooth螺旋形: spiral; volution平螺旋: flat spin; horizontal spin; plane spin; spin; flat扁平螺旋钻: pancake auger倒飞平螺旋: flat outside spin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:平螺旋形，即可在微信中查询翻译
