Terms for subject Technology containing varifocal

English	Chinese
varifocal erecting system	变焦正像系统
varifocal lens	可变焦距镜头
varifocal lens	变焦距透镜
varifocal lens binocular	变焦透镜双筒望远镜
varifocal Moire zone plate	可变焦距莫尔波带片
varifocal objective	变焦物镜
varifocal optical system	变焦光学系统
varifocal scanning system	变焦扫描系统
varifocal viewfinder	万能取景器