eccentric grating偏心: partiality; bias光栅: raster; optical grating; gra ...偏心光波导: eccentric core optical wave guide偏心光束: eccentric pencil偏心光线束: eccentric pencil of rays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:偏心光栅,即可在微信中查询翻译