The wheat growing area in central shaanxi was divided into three climatic zones based on the data of climatic factors and the disease severity for20years by using progressive discriminatory analysis.
利用20余年的气候资料和病情数据，以逐步判别分析法将关中麦区各县（市）划分为三大气候区。
2
Conclusion There was a progressive increase in renal length and width with age, the renal length and width positively correlated with the height, weight, body surface area of school-aged children.
结论学龄儿童正常肾脏长径和宽径随着年龄的增长而增长，且与身高、体重、体表面积呈正相关。
3
The progressive failure is defined as the failure area develops in space and continually along the potential slide carved surface in statistical even soil.