用这个激光聚焦系统，激光微束仪能获得直径小于0。
Using this focusing system, the laser microbeam instrument has got the focal spot size of less than 0.
基于激光推进推力矢量控制，提出、设计并加工了一种三次反射激光聚焦系统。
Based on laser propulsion thrust vector control, a thrice reflecting focus system is put forward, designed and fabricated.
本文应用了一种新型的中空环形激光聚焦系统，并采用了光内同轴送料熔覆方式。
This paper USES a new type of hollow circular focusing system and adopted a method of inside-laser coaxial material feeding to clad.
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