| 1. | The fragile land quickly lost its topsoil and became nothing but sand and dust .
那单薄的土地很快就失去了表土，成为沙粒和尘埃。 |
| 2. | In one mined area the soil was removed, then stockpiled for two years before it was respread .
在一个矿区，表土搬走后堆放了二年才重新铺开。 |
| 3. | In many countries the loss of productive topsoil has contributed to growing food deficits .
在许多国家里，生产性表土的流失已导致日益严重的粮食短缺。 |
| 4. | If the topsoil is taken away by erosion, plants can no longer grow in the soil left behind .
如果因水土流失而冲掉了表土，植物不能再在留下的土壤中生长。 |
| 5. | It would appear that the inputs are insufficient to offset the mobilization and leaching of calcium from the topsoil .
钙的转入量看来不足以补偿从表土中活化和淋失的钙。 |
| 6. | In loessal regions and alluvial valley fills of the western united states, both surface soil and subsoil are commonly friable .
在美国西部黄土区和冲积河谷里，表土和底土一般是容易破碎的。 |
| 7. | In the absence of successful efforts to stem the loss of topsoil, the social effects of erosion will probably first be seen in africa .
在控制表土流失的努力缺乏成效的情况下，土壤侵蚀的社会影响将可能首先出现在非洲。 |
| 8. | Freezing design of thick overburden in main shaft of xuehu mine
薛湖矿井主井深厚表土冻结设计 |
| 9. | Loading and structure of shaft lining by shaft drilling in deep alluvium
深厚表土中钻井法凿井的井壁外载和结构 |
| 10. | The research about the fracture regularity of the frozen shaft wall in surface soil
冻结立井表土段井壁破坏规律研究 |
