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| 81. | International Symposium on River Pollution Control and Management |
| 河流污染防治与管理的国际会议 |
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| 82. | pollution control in offshore petroleum exploitation |
| 海上采油污染防治 |
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| 83. | Pollution control has cleared the air. |
| 污染管制已净化了空气。 |
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| 84. | Eastern European pollution control has been notoriously ineffective. |
| 东欧的污染控制一直以无效而闻名。 |
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| 85. | OWPCB (Ohio Water Pollution Control Board) |
| 俄亥俄水污染控制委员会 |
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| 86. | A clamor in the press for pollution control. |
| 在报纸上对污染控制的呼吁 |
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| 87. | Air pollution control will be expensive. |
| 控制空气污染是要费钱的。 |
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| 88. | Attainment of SO2 in SO2 Pollution Control Zone |
| 二氧化硫污染控制区二氧化硫达标情况 |
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| 89. | application for a licence [water pollution control] |
| 牌照申请书〔水污染管制〕 |
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| 90. | Source Abatement & City Integrated Pollution Control by Region |
| 各地区污染源限期治理及城市综合整治情况 |
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