| 摘要 |
A solar collector comprises an elongate, central conduit for fluid and a laterally concave reflective surface facing the central conduit. The central conduit extends centrally along the laterally concave surface. The surface has a shape to reflect solar radiation onto the conduit. A reflective fin is connected to the conduit and extends away from the reflective surface. The fin has a concave shape to reflect solar radiation striking the fin onto the conduit.
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