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- soil self purification 土壤自净酌
- The pouring of sewage water in great quantity and the pollutants contained in the water of Changjiang has affected the self purification in costal water. 通过对上海滨岸带水体的深入调查、样品采集、分析测试和对比研究,对上海滨岸带水体的自净作用进行了总体评价。
- The host machine has modular and the structure of screw and barrel are designed with precision by com-puter,It has perfect self purification and interchangeability. 主机采用积木式原理设计，其螺杆构型，筒体结构，采用计算机精确设计，具有优异自洁性和任意互换性。
- water requirement of a stream's self purification 河道自净需水量
- water requirements for self purification of the stream 自净需水量
- Some plants push their roots deep into the soil. 一些植物的根深深长入土中。
- Such crops won't grow in limy soil. 这类作物不能在石灰质的土壤中生长。
- What shall we grow in this alkaline soil? 我们应该在碱性土壤里种什么？
- There are a lot of worms in the soil. 泥土中有许多蠕虫。
- Water has permeated (through) the soil. 水已渗遍那片土壤。
- There are some clods of soil on the mat. 垫子上有些土块。
- The earth in the garden is good, soft soil. 花园里的泥土松软肥沃。
- This kind of soil contains much alkali. 这种土壤含碱丰富。
- She makes her living from the soil. 她以务农为生。
- Grass will not succeeded in this dry soil. 在这种干燥土壤中草不会成活。
- The soil absorbs only a fraction of the rain that beats down. 土壤只吸收猛打到地面上的雨水的一部分。
- The soil becomes more and more acidic as pollution mounts up. 随着污染的加剧，土壤的酸化越来越严重。
- biological self purification 生物自净酌
- A plant that grows in saline soil. 盐生植物一种生长在盐分土壤上的植物
- Abel was a shepherd and Cain a tiller of the soil. 亚伯是个牧人，该隐则是个耕田人。
