• It was significant to study the nitrogen and phosphorus losses from surface runoff in double cropping rice filed for guiding the rational fertilizer and protecting water environment.

    研究双季稻田不同施肥量处理降雨径流损失规律,对于指导双季稻合理施肥保护环境具有重要的现实意义。

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  • Because of high ratio of heavy industry and neglect of protecting the water environment, Liao river Basin has become one of the most polluted rivers in China.

    但是由于重工业比重较大长期以来忽视环境保护辽河流域被认为是中国受环境污染严重流域之一

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  • Fresh water is becoming scarce. utilization of water, protecting the ecological environment, maintaining the harmony between human and nature have become a common mission in the 21st century.

    水资源日益短缺,合理开发利用水资源保护生态环境维护自然和谐已经成为21世纪人类共同使命

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  • Water up cruise is a new work to MSA in recent years, it makes important function in protecting the navigation environment and order, but in practice this work still need further perfect.

    水上巡航海事系统近年来开展的一项工作,该项工作的开展保护水上通航环境、维护通航秩序发挥了重要作用实践中巡航工作进一步完善。

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  • As water is very important to our environment, he encouraged everyone to take part in protecting our lakes, rivers, seas and oceans.

    因为我们环境非常重要,所以鼓励每一个人参与保护湖泊河流海洋的行动。

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  • Existing methodology for deriving aquatic environment including water quality standard, sediment quality standard for protecting aquatic environment of the USA and European Countries were reviewed.

    综述美国欧洲一些国家现行推导水生环境质量标准方法研究。

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  • The paper provides the theoretical basis for protecting and harnessing the ecological environment of Wanfeng lake by analyzing the reason of water lettuce pollution.

    探索万峰湖水白菜发生原因,在调查取样分析基础上,对万峰湖水质现状进行了评价与分析

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  • As an increasing need for protecting the environment, a new type of the heat pump water heater with the natural refrigerant CO_2 will appear in water heater market.

    随着人们环保意识增强天然制冷剂CO_2工质热泵热水器作为一种新型产品进入热水器市场。

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  • This study provides a reference for safe utilizing the goaf site, protecting water resources in mining area and preventing deterioration of the ecological environment.

    研究对于如何安全利用采空区场地保护矿区水资源防止生态环境恶化有一定参考价值。

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  • Aimed at factors to influence the aquatic environment, the paper put forward measures of water source protecting during coal mining, regulating coalmine exploitation plan and mine...

    针对影响环境变化因素提出开展采煤保水研究、调整矿山开发规划水污染治理的措施

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  • The environment protecting water saving device has full automatic control, water pump priority, and very convenient use.

    全自动控制水泵优先使用十分方便

    youdao

  • The environment protecting water saving device has full automatic control, water pump priority, and very convenient use.

    全自动控制水泵优先使用十分方便

    youdao

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