The comparison of isoline map measured by GPS with that by leveling shows that in entire trend they, except South China block, agree with each other basically.
对基于GPS观测所得的等值线图与基于水准观测所得的等值线图进行了比较，比较结果显示，除了华南块体外，二者在整体趋势上比较一致。
The rainfall isoline smoothed by the tension spline function algorithm in the process of making rainfall isoline map of Beijing Pinggu District has much better effects.
在绘制北京市平谷地区雨量等值线图过程中，应用张力样条函数算法光滑后的雨量等值线图达到了很好的效果。
The rainfall isoline smoothed by the tension spline function algorithm in the process of making rainfall isoline map of Beijing Pinggu District has much better effects.
在绘制北京市平谷地区雨量等值线图过程中，应用张力样条函数算法光滑后的雨量等值线图达到了很好的效果。
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