The method of treatment in situ of shallow karst road foundation with a soil covering and its good technical and economic benefits were introduced through a practical project example.
通过工程实例，详细介绍了有上覆土层的浅层岩溶路基就地整治办法，及其良好的技术经济效益。
The central Kunming Lake covering 2.2 square kilometers was entirely man made and the excavated soil was used to build Longevity Hill.
昆明湖占地220公顷，多为人工湖，其挖掘出的土壤用于建造万寿山。
Other controls include turning over the soil, pulling the weeds or covering them with mulch made of wood, 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。
Other controls include turning over the soil, pulling the weeds or covering them with mulch made of wood, garden waste or other material.
VOA: special.2010.08.10
But once the seeds are planted, she does suggest covering the soil with a little mulch to protect it during rains and dry periods.
VOA: special.2010.03.02
Other controls include turning over the soil, pulling the weeds by hand or covering them with mulch made from wood, garden waste or other material.
VOA: special.2009.05.26
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