p/d尘: dust; dirt缺陷: defect; flaw次级颗粒缺陷: deficiency of secondary granules颗粒缺陷为当今影响4: particle defect尘粒: dust particles; particle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:尘粒缺陷,即可在微信中查询翻译