A description to the current status of bid theory and research on basis of turning to the reference from China National library, ZheJiang library and ZheJiang University.
在检索国家图书馆、浙江图书馆和浙大图书馆馆藏资料的基础上，描述了我国招投标理论的研究现状。
This paper sums up the utilization and the current conservation status of Magnoliaceae family, and makes a detailed description of the reproductive techniques used in this family.
本文概述了木兰科植物的应用及濒危保护现状，并对近年来木兰科植物繁殖技术的研究进展作了介绍。
This paper sums up the utilization and the current conservation status of Magnoliaceae family, and makes a detailed description of the reproductive techniques used in this family.
本文概述了木兰科植物的应用及濒危保护现状，并对近年来木兰科植物繁殖技术的研究进展作了介绍。
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