求翻译：光降解地膜的环境降解特性远远优于普通聚乙烯地膜，光降解地膜基本降解完全，对环境无污染；而普通聚乙烯地膜的降解效果不明显。是什么意思？

Photodegradation of environmental degradation characteristics of plastic film is far superior to ordinary polyethylene plastic film, plastic film photodegradation complete basic degradation, environmental pollution; and ordinary polyethylene film degradation effect is not obvious.

kwang-biodegradable film environment of degradable is far superior to the ordinary polyethylene film with plastic film, CD-degradable basic biodegradable fully, does not have the pollution to the environment; and ordinary polyethylene film effect of degradability is not obvious.

The light degeneration mulching plastic environment degeneration characteristic surpasses the ordinary polyethylene mulching plastic by far, the light degeneration mulching plastic basic degeneration is complete, does not have the pollution to the environment; But the ordinary polyethylene mulching

Photodegradable mulch film environmental degradation characteristics of far superior to ordinary polyethylene mulch film, photodegradable mulch film basic degradation of completely, no pollution to the environment, and general degradation of polyethylene film mulching effect is not obvious.

Only degrade the environment in the plastic film and degrade the characteristic and is far superior to the plastic film of ordinary polyethylene, only degrade the plastic film to basically degrade completely, pollution-free to the environment; But the degradation of the ordinary polyethylene plastic