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.
镜一种仪器，装有一面会自动调控的镜子，以便不断朝某一恒
向反射光。
温计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.
镜一种仪器，装有一面会自动调控的镜子，以便不断朝某一恒向反射光。
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