particle contact area粒子: grain; granule接触: come into contact with; get ...面积: area接触面积: area of contact; contact area; contact region; land area接触面积率: fractional area of contact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:粒子接触面积，即可在微信中查询翻译
