凹面

凹面 [āo miàn]

1. ■ camber concave; concave surface [camber]; concavity; rearward face

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常用词组

1. ■ 凹面光栅 concave grating;

2. ■ 凹面镜 concave mirror;

3. ■ 凹面砂轮 shell;

4. ■ 凹面体 concaver; neiloid;

5. ■ 凹面圆盘 concave disk