To make it more comfortable, a beaver carpets the floor with grass or shreddedwood.
为了使巢更舒适，河狸用草或碎木铺在地面。
2
Other controls include turning over the soil, pulling the weeds or covering them with mulch made of shreddedwood, garden waste or other material.
其他手段还包括翻土，拔除杂草或用地膜覆盖它们。地膜一般由木屑花园废弃物或其他材料制成。
3
Other fuels such as wood, biomass, shredded tires and sludge are also candidates, depending on their percentage of heat input, moisture content and emission requirements.