phototimer

常见例句

• A race is timed electronically by a phototimer which is accurate to one hundredth of a second.
  径赛采用配有摄影计时器的电子计时，精确到百分之一秒。
• split measurement type phototimer
  分割测量式曝光限时器
• phototimer for indirect radiography
  X线间接摄影用限时器
• Keywords Brightness;Film image density;Phototimer;Exposure control;
  关键词亮度;胶片影像密度;光电计时器;曝光控制;
• 9.A race is timed electronically by a phototimer which is accurate to one hundredth of a second.
  径赛采用配有摄影计时器的电子计时，精确到百分之一秒。
• The phototimer keep warm;
  照相机的保暖；
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