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单词 Hoophouses
释义

Hoophouses

英语百科

Polytunnel

Polytunnels on Balhungie Farm, Angus
A Missouri farmer inspecting an early tomato crop in a hoop house.

A polytunnel (also known as a polyhouse, hoop greenhouse or hoophouse, or high tunnel) is a tunnel made of polyethylene, usually semi-circular, square or elongated in shape. The interior heats up because incoming solar radiation from the sun warms plants, soil, and other things inside the building faster than heat can escape the structure. Air warmed by the heat from hot interior surfaces is retained in the building by the roof and wall. Temperature, humidity and ventilation can be controlled by equipment fixed in the polytunnel.

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