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调查研究

调查研究. 调查油田地区空气污染状况. 在机房 查找资料. 上网查找的资料. 树木的作用以及保护树木的原因. 1. 树木可以调节气候、净化空气、防风降噪，是人类最好的朋友。 2. 树木是氧气制造厂。一公顷阔叶林 1 天可以吸收一吨二氧化碳，释放出 0 ． 73 吨氧气 3. 树木是粉尘过滤器。当含尘量大的气流通过树林时，随着风速的降低，空气中颗粒较大的粉尘会迅速下降。 4. 树木是杀菌能手。许多树木在生长过程中会分泌出杀茵素，杀死由粉尘带来的各种病原菌。. 保护树木对低碳的作用. 保护树木对低碳生活的作用.

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调查研究

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  1. 调查研究

  2. 调查油田地区空气污染状况 在机房 查找资料

  3. 上网查找的资料

  4. 树木的作用以及保护树木的原因 1.树木可以调节气候、净化空气、防风降噪，是人类最好的朋友。2.树木是氧气制造厂。一公顷阔叶林1天可以吸收一吨二氧化碳，释放出 0．73吨氧气3.树木是粉尘过滤器。当含尘量大的气流通过树林时，随着风速的降低，空气中颗粒较大的粉尘会迅速下降。 4.树木是杀菌能手。许多树木在生长过程中会分泌出杀茵素，杀死由粉尘带来的各种病原菌。

  5. 保护树木对低碳的作用 保护树木对低碳生活的作用

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