根据特征元素树创建了基准面和基准坐标系，使我们很方便的在需要参照基准的时候来选取它。
According to feather element tree, the base level and base coordinate system are created, then we can choose them when we need them at any time.
基准面的变化是构造、气候的函数，对于地史时期的滨海盆地，基准面就是相对海平面。
Base level was the function of tectonic movements and climate circles, and base level for coastal basin in geological history was relative sea level.
浮动基准面方法是将相对固定基准面的一份静校正量分解成两部分，并分别在动校正前、后应用的一种处理手段，这种分解是以CMP道集为单位的。
Floating datum method is divide the static of relative fixed datum into two parts that are applied to seismic data before and after NMO respectively and the division is done on CMP gather.
本文还给出了根据（静校正的）CMP基准面计算地表圆滑面的方法，统一了深度域中速度谱、时深转换和深度偏移的基准面。
A method for deriving the smoothed ground surface from CMP datum of static correction is given to form a common datum for velocity spectrum, time-depth conversion and depth migration in depth domain.
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。
There are three different conceptions about base-level that are base level of erosion, base level of deposition and stratigraphic datum, respectively.
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；
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.
原回转铣夹具制造精度较低，现在增加一处工艺基准面，大大提高了它的制造精度和可靠性，并为夹具的使用提供了一处校对基准面，使得叶片型面铣加工更为可靠。
In order to improve the manufacturing technology of rotary milling jigs, a datum plane was added so as to raise the manufacturing precision and reliability.
对于不同的零件，根据其质量要求的不同，不一定加工三个基准面，有时只需要其中一面或两面找基准即可。
For different parts, according to the different quality requirements, not necessarily processing of three base-level, and sometimes only on one side or both sides can find the benchmark.
为区别另一套圈的基准面，允许在该套圈的的非基准面上标工艺标志。
Another ring for the difference between the base-level, allowing the ferrule at the base of the non-standard technology of surface markers.
实际上浮动基准面还是水平基准面，只是不同CMP的水平基准面高程可以变化。
Actually, floating datum is still horizontal datum, but the datum elevation of different CMP is variable.
compressors 齿轮箱为基准机，进行底座调整时以齿轮箱水平剖分面、箱体机加工基准面或 底座支承为基准，同时兼顾压缩机和电动机侧水平仪。
Gearboxes shall be taken as the standard unit. To adjust bottom base by referring to horizontal subdivision section of gear box, box body processing datum plane or support of bottom base;
基准面有三个不同的概念，即侵蚀基准面、沉积基准面和基准面。
There are three different conceptions about base-level that are base level of erosion,...
基准面有三个不同的概念，即侵蚀基准面、沉积基准面和基准面。
There are three different conceptions about base-level that are base level of erosion,...
应用推荐