man-made soil中文什么意思

例句与用法

1. The factors and countermeasures of man - made soil and water loss
   人为水土流失因素及其防治措施研究
2. Status and counterpart measures to the new man - made soil erosion in yong ' an city
   永安市人为造成新的水土流失现状及其防治对策
3. The results showed that : total area of soil and water loss decreased after 1987 , but area of strong erosion grade increased and new man - made soil and water loss accelerated ; 9 of the total 11 regions in zhejiang showed the same changing tendency as the whole province
   结果表明： 1987年以后水土流失总体上有所好转，水土流失总面积减少，但强度以上的流失面积有增加趋势，新的人为水土流失未得到有效控制，且有加速趋势。