1) annular aperture
环状光栏
2) annular condenser aperture
环状聚光镜光栏
3) annular objective aperture
环状物镜光栏
4) plain tubular railing
光面管状栏杆
5) annular beam
环状光束
1.
Using axicon-based optical devices can realize such transormations as Gauss beam into a diffraction-free Bessel beam,solid beam and annular beam converting eachother.
应用旋转棱镜和组合光学系统能够将高斯光束变换成“无衍射”贝塞尔（Ｂｅｓｓｅｌ）光束，并能实现实心和环状光束的相互变换。
6) ring laser
环状激光
补充资料：表光合强度(见光合强度)
表光合强度(见光合强度)
forecast of sowing or transplanting time
b iaoguanghe qiangdu表光合强度见光合强度
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条