The flux density distributions on focus plane and many defocusing planes are measured by the measurement equipment and focusing characteristics of the spots on each plane are also analyzed.
利用测量装置对焦平面和多个离焦面内的能流密度分布进行测量，并分析每个面内的聚焦光斑特性。
Nobody turned when we arrived. They stood facing the runway, as though focusing their collective energy upon the airport building, willing the plane to come.
我们到达时人群中没有人回过头来看，他们面朝跑道站着，似乎把意念集中在机场的站屋上，期盼着飞机的到来。
The laser beam passing through the focusing systems gets an facula, which consists of main spot and sidelobe on the focus plane.
由于光的衍射作用，使通过聚焦系统的激光束入射到特定靶面成一光斑（主光斑） ，而在主光斑以外还有次级光斑圈（旁瓣）。
This paper mainly analyses two scheme designs of focusing system by using the conjugate relation between pupil plane and image plane in Gauss beam.
文章应用高斯光束的瞳平面和像平面的共扼关系，分析激光聚焦系统的两种总体方案的设计。
There are many methods to measure the pattern of phased array antenna, such as the technique of plane scanning in near field, focusing method in Fresnel zone, general method in far field, etc.
阐述了用聚焦法在菲涅尔区测试相控阵天线的理论依据及实现方法，用实验结果对近远场方向图进行了比较。
In this paper we put forward a method of precision laser drilling with plane convex resonator and focusing of quasi-light column.
本文提出采用平凸光学谐振腔准光柱聚焦精密激光打孔方法。
For sharp-focusing system, the expressions for the position of optimum image plane and its corresponding ETF are also given.
文中还对锐聚焦系统给出了最佳归一化离焦量的表达式和相应的ETF近似公式。
Investigators are focusing on the idea that an oxygen cylinder might have exploded mid-flight, ripping a hole in the side of the plane.
调查者认为可能是一个氧气瓶在飞行途中发生爆炸，在机身上撕裂了一个大口子。
Investigators are focusing on the idea that an oxygen cylinder might have exploded mid-flight, ripping a hole in the side of the plane.
调查者认为可能是一个氧气瓶在飞行途中发生爆炸，在机身上撕裂了一个大口子。
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