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| 41. | drainage allowance |
| 液汁流失减重 |
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| 42. | soil loss equation |
| 土壤流失方程 |
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| 43. | soil loss ratio |
| 土壤流失比率 |
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| 44. | universal soll loss equatio |
| 通用土壤流失公式 |
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| 45. | It is horrible to lose opportunity than to lose time, and to lose dream and confidence. |
| 、 比时间流失更可怕的是机会的流失，比机会流失更可怕的是梦想和信心的流失。 |
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| 46. | universal soil loss equatio |
| 通用土壤流失方程式 |
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| 47. | Will the water supply hold up through summer? |
| 供水能持续整个夏天吗？ |
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| 48. | stem drain of state assets |
| 防止(堵塞)国有资产流失 |
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| 49. | If it is very hot, water can become vapour. |
| （ 如果天很热，水能变成蒸气。 |
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| 50. | soil loss tolerance limit |
| 允许土壤流失极限 |
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