The terms "spring and autumn greenhouse" and "sunlight greenhouse" are specialized terms for greenhouses, commonly known as "cold greenhouse" and "warm greenhouse" in folk culture. But from the meaning of their common name, can we also see some tricks in it. The general meaning of a cold shed is that the greenhouse itself does not have heating equipment and insulation facilities, and cannot be used in winter in the north. And the greenhouse is mainly used in northern regions, which is also a unique type of greenhouse in the north. Its insulation is also very good. Without using any external heating facilities, the outdoor temperature in winter in the north is around minus 10 degrees Celsius, which can still ensure an outdoor temperature of around 7-10 degrees Celsius. In addition, with the corresponding heating facilities, normal production operations can still be carried out in the cold winter.
