薄膜是温室的覆盖材料，温室是人工控制作物生长发育环境条件的一种保护设施。它可以改善室内的小气候，保持或强化气候条件中有利于作物生长发育的因素，避免或减少气候条件中不利于植物生长的因素。从而人为地创造一种适合作物生长的最佳条件。因此，覆盖材料的性能直接影响 Film is the greenhouse cover material, the greenhouse is a kind of protective measures to control the environmental conditions of crop growth and development manually. It can improve the indoor microclimate, maintain or enhance the climatic conditions conducive to crop growth and development factors, to avoid or reduce climatic conditions are not conducive to plant growth factors. Artificially creating the best conditions for crop growth. Therefore, the performance of the covering material has a direct impact