Another important application of diffraction theory is the study of the far field divergence Angle of a collimated light beam.
衍射理论的另一个重要应用就是研究准直光束的远场发散角。
2
The portable anti-aircraft missile field training system consists of center control computer, signal commutator, collimated training missile and anti-air commanding lens.
便携式地空导弹野外训练系统模型由中央控制计算机、信号转接器、瞄准训练弹和对空指挥镜组成。
3
New technique of measuring 3d displacement field of object's surface by multiple overlapping holography to use collimated light beams is investigated.