bi convexbiconvex双: two; twin; both; dual凸面: convex surface; crown双凸面摆锤: lenticular bob双凸面的: biconvex; convexo-convex双凸面镜: biconvex lens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:双凸面,即可在微信中查询翻译