Objective to study the difference of health care for pregnant women and obstetric interfere measures in altitude and plain region in order to improve the health care in altitude region.
目的研究高原地区产妇孕期保健及产科干预措施与平原地区的差异，以期提高高原地区的产科质量。
Comparing the information with China and foreign area, we find it is possible that the bronze circular buckle origins from the buckle of horse in central plain region and middle Asia area.
结合境外考古材料的比较，我们推测，中国北方环状青铜带扣应是中原地区、中亚等地两类环形马扣具相结合的产物。
The numerical calculation algorithm for the water quality modeling set up in this paper can be applied to shallow river with similar topographically complicated river course in plain region.
应用所建立的方法，可以进行各种复杂地形条件和不同水位情况下平原区浅水河流水质的数值计算。
As the terrain in plain region is flat, the topographical height difference for the drainage pipeline cannot be utilized so as to cause the pipelines in the lower reaches are buried too deeply.
平原地区由于地势平坦，排水管道往往无地形高差可以利用，造成下游管道埋深过大。
Different geographic environments lead to the diversity of archaeological culture in the Three Gorges region and the Eastern Plain region.
三峡地区与东部平原的不同地理环境，导致了峡区和平原地区的考古学文化的差异。
Different geographic environments lead to the diversity of archaeological culture in the Three Gorges region and the Eastern Plain region.
三峡地区与东部平原的不同地理环境，导致了峡区和平原地区的考古学文化的差异。
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