dasymeter密度: density; thickness测量: survey; measure器: implement; utensil; ware烟密度测量器: smoke de ity meter; smoke density meter; smokede itymeter气体密度测量器: gas density meter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:密度测量器，即可在微信中查询翻译
