Of greenhouse structure installation convenient even, invest in relative to save, in northern area being widely.
连栋温室结构安装方便, 投资相对节省, 在北方地区得到广泛应用.
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In the northern area necessary to plant varieties are outstandingly resistant to low winter temperature.
北部地域只能种植明明能抗冬天低温的品种.
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The heat energy comes from the circulating deeply water supplied from the northern area off fault.
热源来自于北部山区补给沿断层径流的深循环水.
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Chahar an examination in 1945 the Northern Area, is an Zhangjiakou City, Hebei Province.
1945年属察哈尔省察北专区, 现属河北省张家口市.
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