To change tracks, bendable switches are used which consist of a continuous steel beam which is elastically bent by means of electro-mechanical setting drives.
若要改道，可采用曲性道岔。这些曲性道岔由无缝钢条组成，通过机电制导装置，使其柔性弯曲。
This calculating technique then attempts to be applied to the box-shape-section lateral beam in the bogie's frame of SS7E electro-locomotive in order to obtain the FEM calculating results.
基于这种方法，以SS_（7E）型电力机车转向架构架箱型变截面侧梁为应用对象，创建了有限元求解模型。
The key technologies which conclude the designation of electro-optic crystal cell, confirmation of quiescent operation point and the system of beam shape is deeply researched.
对电光晶体器件设计、静态工作点控制、光束整形系统等关键技术进行了深入的研究。
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