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.
定日一种仪器,装有一面会自动调控,以便不断朝某一恒定向反射日光。
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.
定日一种仪器,装有一面会自动调控,以便不断朝某一恒定向反射日光。
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