The trend in the field is oriented to investigate the corrosion mechanism of magnesium alloy and develop environmental friendly chemical treatment technologies.

因此，研究变形镁合金的腐蚀机理，开发高效、低毒、环境友好的化学氧化处理工艺成为当前研究热点之一。

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Biomass power generation has the features that power quality, reliability, technology maturity in renewable energy, and it is an environmental friendly renewable energy technologies.

生物质能发电在可再生能源发电中具有电能质量好、可靠性高、技术成熟等特点，是一种环境友好型可再生能源发电技术。

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New technologies developed by a UK-based company Symphony Environmental Technologies are, they say, making plastics far more eco-friendly.

CNN: Plastic bags fly into environmental storm