differenceofmagnification差: send on an errand; dispatch等: class; grade; rank倍: times放大率差: difference of magnification等倍差: difference of magnification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:放大率差 等倍差，即可在微信中查询翻译
