varifocal lens 变焦透镜 ; 或变焦透镜 ; [摄] 可变焦距镜头 ; 手动变焦镜头
varifocal objective 变焦距物镜 ; 可变焦物镜
varifocal lens binocular 可变焦透镜双筒望远镜
varifocal optical system 可变焦光学系统
Varifocal Camera 变焦型摄影机 ; 变焦型摄像机
varifocal scanning system 可变焦扫描系统
varifocal Moire zone plate 可变焦距莫阿带片
Aspherical Varifocal Lens 非球面变焦镜头
varifocal display 变焦点展示
ADJ having a focus that can vary 有变焦距的 [optics]
Through controlling the vibration amplitude and direct current component of the driving wave for the varifocal mirror, we can obtain the different depth range.
通过控制变焦镜驱动波的振幅和直流成份，可获得不同的深度范围。
The lenses are available in single vision, varifocal and sun-lens forms. They need to be sprayed with a chemical solution every week to keep the fog-repellent surface working.
这种镜片有单光、变焦、太阳镜三种形式，使用时需要每周在镜面上喷洒一种化学溶剂，才能保持防雾表面持续有效。
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