1·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。
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 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。
3·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；
4·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。
5·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。
6·In this paper, the observed land surface height data and tidal data in the Yellow River delta foreland area are used to describe the variations in depth datum and tidal level in the area.
通过黄河三角洲前沿陆地高程的变化和验潮获得的资料，介绍了黄河三角洲前沿深度基准面的变化和潮位变化情况。
7·There is a close correlation between sea level slope and height datum, in which geodesylists and oceanographers are interested.
海面倾斜与高程基准密切相关，它已经受到大地测量学界和海洋学界的重视。
8·The transforming of survey datum and the control of axis, vertical level, elevation are of great importance on controlling quality of high-rise building construction.
在高层及超高层建筑工程中，测量基准传递和轴线、垂直度、高程控制是建筑物施工质量控制的重点内容之一。
9·There are three different conceptions about base-level that are base level of erosion, base level of deposition and stratigraphic datum, respectively.
基准面有三个不同的概念，即侵蚀基准面、沉积基准面和地层基准面。
10·Some key techniques, such as attitude correction, quality control of GPS height, transformation of vertical reference datum and extraction of tidal level, are studied in detail.
这些关键问题主要有姿态改正、GPS高程质量控制、垂直基准转换、基于信号的在航潮位提取。