prerotationprewhirl预: in advance; beforehand旋: whirl度: surmise; estimate预旋: prerotation; prewhirl旋度: absolute rotational stiffness; circulation; curl; rotor; strength of vortex; vorticity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:预旋度，即可在微信中查询翻译
