To realize artesian discharge, there must be a certain height of liquid level, or an adequate level difference between the liquid stored and the outlet of unloading arm.
要实现自流付油，油品就必须有一定的液面高度，也就是要求储存油品液面与发油鹤管出口具有足够的高度差。
In this paper, the relation between the discharge of Shentouquan artesian province and rainfall change is studied with the seasonal decomposition method.
运用季节分解的方法分析了我国北方著名岩溶大泉—神头泉流量与大气降雨变化的关系。
The results show that the rainfall change is the main cause of affecting the discharge of the artesian province, there exists a lag time of 11 years between them;
结果表明，大气降雨变化是影响神头泉流量变化的根本原因，其间存在着11年的滞后时期；
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