gravity seed cleaner重力: gravity; force of gravity; g ...机: machine; engine选种机: seed cleaner; seed sorting machine重力选: gravitational separation; gravity concentration; gravity preparation; specific gravity separation谷粒选种机: grain grader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:重力选种机，即可在微信中查询翻译
