An instrument in which a mirror is automatically moved so that it reflects sunlight in a constant direction.It is used with a pyrheliometer to make continuous measurements of solar radiation.
定日镜一种仪器，装有一面会自动
镜子，以便不断朝某一恒定
向反射日光。
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pyrheliometer
n. 太阳热量计,日温计
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harpagide, harpaxophobia, harper, Harpers, Harpers Ferry, harpes, harpidae, harpies, harpin, harping,
相似单词
pyrexic, pyrexin, pyrgeometer, pyrgocephalic, pyrgom, pyrheliometer, pyrheliometry, pyrhite, pyribenzamine, pyric,
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