The conventional span of Gothic greenhouse is 8 meters and 9.6 meters, and the arch pipes are mostly elliptical pipes with a spacing of 4-5 meters, which has good bending and compression resistance. The top ventilation adopts an overall closed opening mode, and each arch has a separate top opening window reducer motor that operates independently. The gear rack structure ensures stable operation, higher ventilation efficiency, and longer service life. The greenhouse is covered with double skeleton and double film, greatly improving the insulation performance of the greenhouse.