单词 | 定日镜 |
释义 | 〔heliostat〕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,装有一面会自动调控的镜子,以便不断朝某一恒定方向反射日光。与太阳热量计同时使用,以保持对太阳辐射的不间断测量 |
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