“agriculture in Huang-Huai-Hai region”的概念、定义、翻译、参考文献-科学参考

单词	agriculture in Huang-Huai-Hai region
释义	agriculture in Huang-Huai-Hai region Encyclopedia 管理学〔区域农业〕释 agriculture in Huang-Huai-Hai region黄淮海地区农业黄淮海地区生产农产品的社会生产活动。黄淮海地区即黄河、淮河、海河流域内的冲积平原及毗连的山地、丘陵，其地北枕长城，南抵桐柏山、大别山北麓，西倚太行山和豫西山地，东出渤海和黄海。
随便看	periodic water flooding periodic water injection periodic waveguide periodic waveguides periodic zeta-function period inequality period integral periodization periodization of annual training Periodization of History periodization of multi-year training period lattice period length Period life table period-luminosity-color relation period-luminosity curve period-luminosity relation period mapping period-mass relation period matrix period-mean density relation period module period-n-tupling bifurcation period of a circulating decimal period of a class

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