山东省桑蚕养殖与技术供求特征调查分析

Publisher: 国家哲学社会科学学术期刊数据库

E-ISSN: 1671-1807|16|4|1-5

ISSN: 1671-1807

Source: 科技和产业, Vol.16, Iss.4, 2016-01, pp. : 1-5

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

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Abstract