plastic covering

Production systems utilizing plastic mulch involve additional input costs over traditional non-plastic systems.

应用塑料薄膜覆盖的生产体系要比传统非塑料薄膜覆盖体系多投入资金。

Plastic mulch increases soil temperature in the bed which promotes faster crop development and earlier yields.

塑料薄膜覆盖提高苗床的土壤温度，促进作物较快发育并提早成熟。

Bare soil is protected from the impact of rainfall which can cause surface soil crusting, compaction, and erosion.

塑料薄膜覆盖使裸土免受降雨引起的表土结壳、压实和侵蚀。

Effects of plastic mulch on early and total yields of watermelon and muskmelon are presented （Table 2）.

表1阐明了塑料薄膜覆盖对西瓜和甜瓜的早期产量和总产量的影响。

Although mulch is used primarily for vegetable production in the United States, it is a viable concept for any crop where profitability can be demonstrated.

在美国，虽然塑料薄膜覆盖主要用于蔬菜生产，但对任何可以获得效益的作物都可行。

Plastic mulches create a barrier preventing fumigant gases from escaping to the atmosphere, thereby increasing their effectiveness.

塑料薄膜覆盖可以形成防止烟熏气体逸散到大气的屏障，所以提高烟熏气体的杀虫效果。

Although total yields of both crops benefited from mulch, the most dramatic benefit was because of the early harvest.

虽然塑料薄膜覆盖对这两种水果的总产量有好处，但最明显的收益是由于早期产量的增加。

Polyethylene blown mulch film for agricultural uses

GB13735-1992聚乙烯吹塑农用地面覆盖薄膜

An Applied Research on the Covering Technique with Plastic Film by Floating Type

浮卷法塑料薄膜苫盖技术的应用研究

a thin sheet of (usually plastic and usually transparent) material used to wrap or cover things.

覆盖在事物上面的薄层（通常是透明的塑料）。

There is some benefit under clear plastic mulch due to higher temperatures generated （solarization） than occurs with opaque mulches.

用透明塑料膜覆盖优于不透明塑料膜覆盖，因为前者能产生较高的温度（日晒作用）。

Experimental Analysis on Photothermic Property of New Style Covering Materials PETP Film for Greenhouse;

温室新型覆盖材料PETP薄膜光热性能研究

The Optical Property Research and Analyse of New Film Cladding Material

新型薄膜覆盖材料的光学性能研究及其分析

tasefully-coloured plastics,

色调高雅的塑料所覆盖，

vinyl-coated sheet

乙烯基塑料覆面薄钢板

Researching and Analyzing on the Performance and Application of the New Film Covering Materials

新型薄膜覆盖材料的性能分析及其应用效果的研究

the hard disk is covered with a thin coat of magnetic material.

硬盘被一层薄薄的磁性材料覆盖着。

automatic plastic bag film seaming and cutting machine

塑料薄膜袋自动封剪机