The article has forecasted the agricultural mechanical total power of Qinghai province past years with multi-mathematic methods, and obtained good effects.
应用多种数学方法对青海省历年的农机总动力进行了预测，取得了良好的效果。
There are close relations between the losses of total ozone in spring and summer and the uplift of the second tropopause height in summer over the Qinghai-Xizang Plateau in recent 30 years.
近30年春、 夏季高原臭氧总量亏损与夏季高原第二对流层顶高度的抬升存在着密切关系。
State the total area of 45 thousand square kilometers, Qinghai-Tibet Plateau and the Loess Plateau in the transitional zone, the high-lying north-west, south-eastern low.
全州总面积4.5万平方公里，处于青藏高原和黄土高原过渡地带，地势西北部高，东南部低。
应用推荐