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| 91. | plumbing and drainage |
| 水管和排水设施 |
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| 92. | drainage of coal pits |
| 煤矿矿井排水 |
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| 93. | drainage cock on strainer |
| 过滤器排水开关 |
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| 94. | the drainage of the swamps |
| 沼泽地的排水 |
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| 95. | interior drainage |
| 内陆水系|内陆排水水系 |
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| 96. | acid mine drainage |
| 酸性矿水排水 |
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| 97. | drainage connection system |
| 排水渠道接驳系统 |
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| 98. | division of drainage area into districts |
| 排水分区 |
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| 99. | redundant drainage facilities |
| 多余的排水设施 |
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| 100. | hydrologic and hydraulic calculation of drainage system |
| 排水演算 |
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