Mulching plastic film的用法和样例：
例句
- Cultivation by covering with plastic film can effectively restrain the invalid evaporation of soil moisture, especially before the period of jointing.
覆膜栽培可有效抑制农田水分的无效蒸发，具有明显的抗旱增产作用。 - When sometimes covered with film silican drum the water or steam, this is due to a large number of paper after absorption.
覆膜时有时会发现硅胶滚筒上有明显的水滴或蒸汽，这是由于纸张吸收了大量水分后导致的。
