专家指出，目前发达国家早已淘汰了普通棚膜，采用先进的具有耐老化和耐候功能的棚膜，而我国普通棚膜产量仍占棚膜总产量的８１．８％，先进的耐老化和耐候功能膜仅占１８．２％，棚膜质量也不够好。因此，开发新品农膜成为当务之急。发达国家生产的防雾滴膜有效期基本上... Experts pointed out that currently the developed countries have already eliminated ordinary greenhouse films and adopted advanced greenhouse films with anti-aging and weathering capabilities. However, the output of common greenhouse films in China still accounts for 81.8% of the total output of greenhouse films. Advanced anti-aging and weatherability Functional film accounted for only 18.2%, film quality is not good enough. Therefore, the development of new plastic sheeting has become a top priority. Developed countries, the effective anti-fog drip film basically ...