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21. | Air, as well as water, is needed to make plants grow. |
| 空气和水都是植物生长所必需的。 |
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22. | water disposal well |
| 水处理井 |
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23. | water supply well |
| 水源井 |
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24. | Equipped with suitable Derrick and well controlled device in drilling a shallow gas well, water drills |
| 通过某浅层气井的施工实例,阐述了水井钻机安装合适的钻塔底座和并控装置,可降低浅层气井建井成本。 |
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25. | water dependent well |
| 水驱油井 |
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26. | truck mounted water well drilling rig |
| 车装水井钻机 |
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27. | water injection well |
| 注水井 |
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28. | The following rates reflect what water retailers and agricultural users pay for wholesale or well water |
| 描述:本网站包括了用水零售商和农业用户支付批发用水和井水的比例以及不同类型的农业用水量(括地下水,地表水,存储水等)收费情况,计算公式等等。 |
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29. | water-free well |
| 无水油井 |
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30. | high water-cut well |
| 高含水井 |
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