The water endurance of earthworms,earthworms loading,sewage concentration and percolation velocity which affected treatment efficiency were investigated.

  • 试验对蚯蚓的耐水能力、蚯蚓负荷、污水浓度以及渗滤速度等因素对污水处理效果的影响进行了初步研究。
目录 查词历史