The piezometric head is also measured from the same datumlevel.
测压水头亦应从同一基准面算起。
2
However, in order to compare data between Wells it is important to have a valid, area wide reference for comparison. This is the permanent datumlevel.
但是为了对不同的井进行比较,需要确定一个区域的有效的永久深度参考面。
3
The well log response model of the datum cycle is developed through core calibration and well logging, classifying the middle-term cycle of datumlevel.