凹面 meaning in English
camber concave; concave surface [camber]; concavity; rearward face
◇凹面镜 concave mirror; 凹面体 concaver; neiloid
Examples
- The mirror is concave .
镜子呈凹面。 the spectrograph uses a concave diffraction grating that provides a wavelength dispersion of 4. 2a°/mm in the first order. 光谱仪用了一块凹面衍射光栅，第一级光谱的色散度为42埃毫米。 - Holes and traps for t - head bolts - design standard
T形头螺钉的安装孔和接触凹面.设计标准 - Equipment for working the soil . concave disks
土壤耕作机械.凹面圆盘 - Abney mounting for concave grating
阿布饰凹面光栅装置