单词	使用注解量
释义	使用注解量Quantity in Use Comment
随便看	optical velocimeters optical velocity measurements optical vernier optical vestigial side-band modulation optical vibration optical vibrometer optical video disc optical video disc，ovd optical video tape recorder optical video tape recorder (ovtr) optical viewer optical viewing system optical visibility optical visual binary optical voltmeter optical wand optical wavegudie optical waveguide optical waveguide analysis optical waveguide arrays optical waveguide circuit optical waveguide communication optical waveguide components optical waveguide coupler optical waveguide couplers