发明授权
US4159706A Solar collector comprising an evacuated absorber cover tube 失效
太阳能收集器包括抽真空吸收器盖管

Solar collector comprising an evacuated absorber cover tube
摘要:
A solar collector comprising an evacuated, transparent cover tube sealed at its ends and an associated selective absorber, the inner surface of at least one end of the cover tube being provided with a metallic reflective layer.
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