单词	gradient lines
释义	gradient lines 梯度线
随便看	graded fairway graded fare graded fiber graded filter graded free category graded fruits graded glass seal graded gravel graded group graded hardening graded heterojunction graded homomorphism graded hourly rate graded hourly rates graded hydrolysis graded ideal graded illumination graded-index graded index graded-index device (grin) graded index fiber graded-index fiber graded index fiber caustic surface graded index fiber coupling efficiency graded index fiber coupling gain 热3 热4 热可炙手热心快肠热心苦口热情洋溢热气腾腾热泪盈眶热火朝天热熬翻饼旧型旧大陸旧套旧姓旧字旧字体旧宅旧家旧居旧師