| 摘要 |
<p>The tarpaulin (1) has a middle section (3) with high air permeability, and two lateral sections (2) with low air permeability. The middle section includes a width ranging from 1 to 5 m and is made of non-woven fabric or open fabric. Each lateral section includes a width ranging from 3 to 8 m and is made of uncoated woven fabric. The middle section has a surface weight of 100 g per square m. Each lateral section includes a surface weight 120 g per square m. The middle and lateral sections are sewn with each other. The lateral sections has a reduced permeability for water and humidity. An independent claim is also included for a method for covering a beet stack.</p> |
