apparent porosity虚: void; emptiness表: outside; surface; external孔隙: small opening; hole; pore; a ...度: surmise; estimate视: look at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:虚表孔隙度,视孔隙度,即可在微信中查询翻译