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Plant propagator with tubes for solar heated medium - between compost and heat insulated bottom layer, and also contains reflective layers
Plant propagator with tubes for solar heated medium - between compost and heat insulated bottom layer, and also contains reflective layers
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机译:带有用于太阳能加热介质的管道的植物繁殖器-在堆肥和隔热的底层之间,还包含反射层
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摘要
The plant propagation unit comprises a support carrying a layer of compost or the like, and a system of tubes through which a heating medium is passed to heat the compost. The tube system is contained between the compost above it and thermal insulation below whilst the medium is heated by a solar collector. The insulation is pref. polyurethane foam etc. with an aluminium or similar plate below it. A reflective layer, e.g. aluminium foil, may be arranged between the insulation and the tubes, and a metal plate, e.g. in aluminium or galvanised steel, may be provided between the tubes and the compost.
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