... 文物保护技术 techniques of relics protection 文物保护研究 studies in conservation 珍贵的历史文物 precious historical relics ...
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Secondly, the dissertation studies the PSR mechanism of cultivated land conservation in deep.
其次，对耕地保护的PS R机理进行了深入的研究。
Although there have been extensive studies on the genetics of endangered plant species, it is still highly debatable about the role of population genetics in rare plant conservation.
尽管对于濒危物种的遗传学人们已经进行了大量研究，但是种群遗传学在植物保护中的实际地位尚存在很大争议。
This article namely studies one kind based on the market energy conservation new mechanism contract energy management in our country application question.
本文即研究一种基于市场的节能新机制——“合同能源管理”在我国应用的问题。
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