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- causes of soil formation 地质成因
- Running water is one of the principal causes of soil erosion. 奔流不断的水是侵蚀土壤的主要原因。
- They are soilparent material, bioclimate, landform, time of formation, man-made factorand guiding factor of soil formation. 分析了起主导作用的成土因素是成土母质与地貌。
- The interruption of soil formation might be related with excessive rainfall,therefore,the climate had some fluctuation in the pedological process of the profile. 土壤形成的间断可能与多水期相对应，这表明在该剖面形成过程中，气候有一定的波动。
- Major Causes of Soil Erosion in the Upper Yangtze River Valley and the Control Countermeasures. 长江上游水土流失主要成因与防治对策
- The trampling,turf machinery and irrigation were the main causes of soil campaction on the golf course. 认为践踏、机械镇压及浇水是引起土壤紧实的主要原因。
- The process of soil formation. 土壤生成土壤形成的过程
- We must try to analyse the causes of the strike. 我们得研究一下罢工的原因。
- The results showed that the arid desert climate and soil accumulation salt were the main causes of soil salinization their contribution was of 69.3%. 结果表明：干旱荒漠化气候和土壤历史积留盐分是灌区内土壤盐渍化的主导因子，贡献率达69.;3%25；
- There are some clods of soil on the mat. 垫子上有些土块。
- Smoking is one of the causes of heart disease. 吸烟是引起心脏病的一种病因。
- This kind of soil contains much alkali. 这种土壤含碱丰富。
- He is researching into the causes of cancer. 他正在研究癌症的起因。
- It's rich there because of the fertility of soil. 因为土地肥沃，那儿很富裕。
- Clods of soil stuck to the spade. 土块黏在铁铲上。
- Most of the lecture related to the causes of common ailments. 演说的大部分是关于普通疾病的原因的。
- The real causes of the accident are now in the open. 事故的真正原因现已非常明显。
- The main cause of soil erosion is deforestation for farmland reclamation and cultivation on steep slopes. 水土流失的主要原因是毁林开垦，陡坡种植。
- Recent research has shed new light on the causes of the disease. 最近的研究结果对该病的病因已有新的了解。
- The main causes of breakage were concrete tube pile instability of foundation pit or failure of its bracing, soil squeeze due to pile driving, incorrect excavation and incorrect heap of soil. 摘要造成混凝土管桩倾斜与断裂的主要原因为基坑边坡失稳或支护结构破坏、沉桩挤土效应以及挖土与堆土不当等。
