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- Any of several radiometric instruments, such as a pyrheliometer, used chiefly for meteorological measurements of terrestrial and solar radiation. 日射强度表一种微辐射探测仪，如直接日射强度计，主要用于对地球及太阳辐射的气象测量
- 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
- 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。
- Angstrom compensation pyrheliometer 埃斯特朗补偿太阳热量计
- michelison bimetallic pyrheliometer 迈克尔逊双金属直接日射计
- absolute ( self-calibrating ) pyrheliometer 绝对直接日射表
- absolute (self-calibrating) pyrheliometer 绝对直接日射表
- absolute self-calibrating pyrheliometer 绝对直接日射表
- Standard Test Method for Calibration of a Pyranometer Using a Pyrheliometer 用直接日射强度表校正日射强度计试验方法
- any of several radiometric instruments,such as a pyrheliometer,used chiefly for meteorological measurements of terrestrial and solar radiation 日射强度表，一种微辐射探测仪，如直接日射强度计，主要用于对地球及太阳辐射的气象测量
- pyroheliometer n. 太阳热量计
- Eppley pyrheliometer 埃普利太阳热量计,埃普利日射强度计
- primary standard pyrheliometer 基准直接日射表
- normal incidence pyrheliometer 正入射日射强度表
- compensating pyrheliometer 补偿直接日射强度表
- pyrheliometer n. 太阳热力计;日温计
- working standard pyrheliometer 标准直接辐射表
- hemispherical pyrheliometer 半球式日射强度表
- quartz glass pyrheliometer 石英玻璃太阳热量计
- recording pyrheliometer 记录式太阳热量计
