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| 51. | drainage pump statio |
| 排水抽水站 |
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| 52. | the routing of water drainage |
| 排水走向 |
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| 53. | surface drainage |
| 路面排水 |
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| 54. | longitudinal drain |
| 纵向排水 |
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| 55. | road drainage |
| 道路排水 |
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| 56. | drainage period |
| 排水期 |
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| 57. | closed drain age |
| 闭合式排水 |
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| 58. | displacement of volume |
| 排水体积 |
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| 59. | drainage by open canal |
| 明渠排水 |
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| 60. | drainage of embanked field |
| 圩田排水 |
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