Can't be sunk in heavy clay soil or rock.
不能在重黏土或岩石中打这种井。
Crusting of heavy clay soils after rainfall often causes poor emergence of crop seedlings from soil or even failure of a crop.
紧实土壤降雨后常由于板结而严重影响作物出苗，导致建植不良乃至失败。
For example, if one portion of pipe is in heavy clay soil and another is in well-aerated sandy soil, the portion in the clay will corrode with respect to the portion in the sand.
例如，管道的一部分在重质粘土中，另一部分在透气好的砂土中，粘土内的管段相对于砂土内的管段被腐蚀。
Let's say you live in Chicago.The city has a heavy clay soil, so many residents opt for raised vegetable beds, says Ron Wolford, who works at the University of Illinois Extension.
伊利诺伊大学的沃芙德(Ron Wolford)说，要是住在芝加哥的话，那里土壤中的黏土比例很高，所以很多居民选择垫高土地。
This natural environment is a far cry from the typical urban landscape with heavy clay soil that is poorly aerated, poorly drained, and almost completely lacking in organic matter.
自然环境与有着粘性土质典型的城市风景带完全不同，鲜有空气进入，排水差，有机养料奇缺。
The soil were divided into five groups of soil, e, g, light clay, heavy loam, medium loam, light loam and sandy soil, using the group of soil texture of plowed layer as the mapping unit.
以耕层土壤质地类别作为制图单位，分为轻粘土、重壤土、中壤土、轻壤土和砂质土五种类型。
Due to the high organic content of dredged soil, its ability to adsorb various contaminants such as heavy metals warranted an investigation of its use in clay liner of landfill.
充分利用疏浚土有机质含量高、吸附能力强和低透水性等特点，将其作为填埋场粘土衬垫的添加材料。
The soil should be amended well, especially with heavy soils like clay.
泥土在使用前须经过很好的改良，尤其是像粘土类难耕的土地。
The soil should be amended well, especially with heavy soils like clay.
泥土在使用前须经过很好的改良，尤其是像粘土类难耕的土地。
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