- concaveadj. 凹的，凹面的; n. 凹面; vt. 使成凹形
时 态: concaved, concaving, concaves
concave mirror n. 凹透镜
- concaver凹面体
- convexo-concaveadj. 半凸半凹面的
- grating衍射光栅；绕射光栅
holographic grating [化]全息照相栅
concave grating 凹面光栅
grating constant 光栅常量；晶格恒量；点阵常数
- metaten. 凹面(或平面)磨盘(墨西哥和美国西南部用以碾磨谷粒、玉米等)
- neiloidn. 凹面体
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