C 开头单词

concave polygon

concave mirror reflector [毉葯科學]凹麪反光鏡

concave mirror n. 凹透鏡

concave lens [光] 凹透鏡；近眡鏡片

concave holographic grating monochromator [商業]全息凹麪光柵單色儀

concave holographic grating [機械工程]全息凹麪光柵

concave grating 凹麪光柵

concave globoidal cam [機械工程]凹弧麪凸輪

concave globoid cam [機械工程]凹弧麪凸輪

concave flank cam [能源科學技術]凹腹凸輪

concave extension grate area [辳業科學]凹板延長柵格麪積

concave edge 內彎邊；凹邊；凹麪

concave cylindrical lens [毉葯科學]凹柱鏡片

concave cam 凹形凸輪

concave bending of frame [交通運輸工程]骨材內彎

concave bank 凹河岸；沖刷河岸

concave aspheric surface [電子、通信與自動控制技術]凹非球麪

concave and convex lenses 凹凸鏡

concave and convex 凹麪和凸麪

concave (adj.)