mine area of north China 华北煤矿区
eastern area of north china 华北地区东部
Irrigated area of north China 北方灌区
mountainous area of North China 华北山区
north area of china 我国北方地区
Soil erosion by wind is a major cause of farmland degradation in arid and semiarid area of north China.
土壤风蚀是中国北方干旱半干旱地区农田土地退化的重要原因。
It is pointed out that this research is significant for heightening earthquake prediction level for the north area of north China.
指出，这些研究对提高华北北部地区的地震预测水平有一定意义。
The mountainous area of North China is surrounded by the North China Plain, Shanxi Gansu Loess Plateau and Inner Mongolia Plateau.
华北山区位于华北平原与陕甘黄土高原以及内蒙古高原之间，是我国经济欠发达地区之一。
应用推荐