The piezometric head is also measured from the same datum level.

测压水头亦应从同一基准面算起。

However, in order to compare data between Wells it is important to have a valid, area wide reference for comparison. This is the permanent datum level.

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。

The well log response model of the datum cycle is developed through core calibration and well logging, classifying the middle-term cycle of datum level.

通过岩心标定测井，建立其基准面旋回的测井响应模型并划分中期基准面旋回；

Through selecting floated datum level and using feasible multi-step static correction combination, the static correction problem of long and short wave field was basically solved.

地震资料处理中静校正问题突出。通过对资料的认真分析，采取合理的多种静校正方法的组合，较好解决了长短波场的静校正问题。

With the idea of the datum plane linking the two shops at a higher level, the shops are actually conceived as separate and independent entities on the ground.

基准面在更高的层层连接这两个商店的概念，而在地上作为单独的实体商店。