n.受衍射限制的镜头 diffraction-limited lens: 衍射限透镜diffraction lens: 衍射透镜; 衍射线透镜diffraction limited circular aperture: 衍射限制圆孔diffraction limited divergence: 衍射极限散度diffraction limited laser: 有限衍射激光器下载手机词典可随时随地查词查翻译