单词	砾石承托层
释义	砾石承托层 gravel support
随便看	two station turret winder two-stator induction machine two-stator-rotor motor two-staud cold rolling mill unit Two steles honoring three generations Two steles honoring three generations? Twostemen Drymaria Herb twostep two-step activation Two-step A/D converter two-step ageing two step aging two-step aging two-step aging treatment two-step ammoniation method two-step analysis two-step analysis method two-step anneal method two-step anodic oxidization two-step anodizafion two-step anodization two step two-step Two-step acid-alkali treatment two-step acid etching