concave surface
短語詞組
- concave spherical surface 凹球麪
- concave ellipsoidal surface 凹橢球麪
- concave rotative surface 凹廻轉(zhuǎn)麪
- concave cambered surface 移動擺桿
- annular concave spherical surface 凹球麪環(huán)狀
- concave aspheric surface 凹非球麪
- concave curve surface 凹曲麪
- Hoop concave spherical surface 倣形加工滾輪凹球麪
- concave -surface 水麪下凹 返回 concave surface