in north china

• The drought and crop failure were the most serious in north china in a hundred years
  那几年，华北平原发生了百年不遇的大旱灾和歉收。
• Regional groundwater pumpage for agriculture responding to precipitation in north china plain
  华北平原农田区地下水开采量对降水变化响应
• Winter wheat growth simulation under water stress by remote sensing in north china
  遥感信息应用于水分胁迫条件下的华北冬小麦生长模拟研究
• Experimental study on conservation tillage system in areas of two crops a year in north china plain
  华北平原一年两熟保护性耕作体系试验研究
• The home markets are in north china ; the markets are in south eastern asian abroad
  国内市场主要面向华北地区，国际市场面向东南亚国家和地区。
• Water - bearing characteristics and hydro - geological models of karstic collapse columns in north china
  北方岩溶陷落柱的充水特征及水文地质模型
• Simulation experiment of possible effects of various arid periods in spring on winter wheat in north china
  华北春旱年型对冬小麦影响的模拟试验
• Xiao yun : good idea ! you know , miyun reservoir is the biggest reservoir in north china
  小云：好主意！知道吗，密云水库是华北地区最大的水库呢。
• Mary , i need the facts and figures for sales in north china . but what ' s this
  玛丽，我需要的是华北地区的实际销售情况和数据。但你给我的是什么？
• Present situation and main research points of water - saving agricultural technique development in north china
  我国北方地区节水农业技术水平及评价