| 摘要 |
In a radiation heat collector, comprising: a linear tubular heat collector member defining an internal passage for conducting fluid and a reflector having a reflecting surface partly surrounding the heat collector member, the reflector is rotatably supported around the heat collector member so that the angular position can be changed at will so as to optimize the orientation of the reflector for the given location, inclination of the solar collector, time of the year and time of the day.
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