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基于综合生产能力核算的河北省耕地重点保护区划定

by 门明新, 张俊梅, 刘玉, 李新旺, 许皞
Published in 农业工程学报 (2009)

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Journal Article

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一种交通照明灯

Year of Publication 06.07.2016

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Patent

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一种交通道口太阳能LED照明灯

Year of Publication 06.07.2016

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Patent