This paper analyzes the causes and treatment of the torsional displacement and plane rotational displacement of curved continuous concrete beam bridge basing on an engineering example.
通过一个混凝土弯连续梁桥梁体出现较大扭转位移与平面转动位移的工程实例，分析其出现的原因及处理措施。
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。
Our calculations show that the Bessel-Gauss beam can be produced in the focused plane of the ring apertured Gaussian beam, this method is efficient and simple.
本文通过计算指出环状分布的光束经透镜后可在焦平面产生适用于激光打孔的贝塞尔·高斯光束，这是一种高效、简单实用的方法。
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