biplate中文什么意思

双片

• doubly refracting biplate:    双折射双片

例句与用法

1. Beam expander and field lens : quadruple beam expansion , biplate structure design , totally enclosed optical system , no lens pollution and without replacement
   扩束镜及场镜： 4倍扩束，双片结构设计，全封闭的光学系统，镜片无污染，不用更换。