最后，介绍了新型材料HDPE膜技术在环境卫生工程中预防冻害的应用。
At last, the paper presents application of technology of new materials HDPE file in preventing frozen damage in environmental health engineering.
最后，介绍了新型材料HDPE膜技术在环境卫生工程中预防冻害的应用。
At last, the paper presents application of technology of new materials HDPE file in preventing frozen damage in environmental health engineering.
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