工业萧条对北方地区打击沉重。
应用PCR-SSP技术对北方地区50例白血病患者和60名健康对照者进行KIR基因的检测和分析。
The KIR genotype of 50 patients with leukemia and 60 healthy controls in northern. Hans were analyzed by PCR-SSP.
因此，温室作为在我国北方地区冬季保温栽培的主要生产设施，对北方地区农民经济收入的提高起着重要的作用。
The greenhouse, as northern area keep main production facility of culture warm winter in our country, seems particularly important to peasants' economic income of northern area.
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