assuring rate of depth datum [测] [海洋] 深度基准面保证率
depth at chart datum 基准面下深度
depth datum planes 深度基准面
theoretical depth datum 理论最低低潮面
theoretical depth datum tdd 海图理论深度基准
In most cases, subsequent depth measurements, such as those made during the well completion phase, are corrected to the wellhead datum that is based on drillers depth.
在大多数情况下，随后的测量(如在完井阶段所进行的测量)都被校正至基于司钻深度的井口基准面。
Inversion result only has some errors when datum interface depth is inaccurate.
界面基准理深取得不准时，反演结果只产生有限的误差。
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。
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