Given a regex and a datum, a regex engine yields whether the datum matches a pattern and, if a match was found, what matched.
给定一个正则表达式和数据，正则表达式引擎将得到数据是否匹配模式及匹配内容(如果找到匹配)等结果。
Often, it is something global like WGS-84 (World Geodetic System 1984, used by all GPS devices), or a regional datum like NAD-83 (North American Datum 1983).
它常常是全球大地基准点（比如WGS-84，即World GeodeticSystem 1984，由所有GPS设备使用），或地区性大地基准点（比如NAD-83，即NorthAmericanDatum 1983）。
This paper expounds in theory that, we may use the relative stability or their ratio caused by UNVARIABLE as the proportion of the point on datum, which accords with the demands for choice of datum.
本文从理论上阐明用不变量导出的相对稳定度函数或其比值作为点在基准中的份量是符合对基准选择之要求的。
syntax-object->datum is the reverse process of the datum->syntax-object.
syntax-object->datum 执行与 datum->syntax-object相反的过程。
Perpendicularity - is the condition of a surface, axis, or line, which is 90 deg. From a datum plane or a datum axis.
垂直度-条件是表面，轴，或线，这是90度的基准平面或基准轴。
The controlling software in the PC called GDP Experimental System (GDPES) can control the controller, get the datum from the controller to proceed and save the datum.
PC机内装有控制软件——高分子材料动态力学谱仪试验系统(GDPES)对控制器进行控制，从控制器得到数据并进行整理、保存。
Should regard initial data in the charts of route location and curve elements as datum that coordinates calculate will just get the datum of high accuracy, Guide constructing accurately.
应以路线固定表和曲线要素表中的原始数据为基准推算坐标才会得到更高精度的数据，精确指导施工。
One is how to get geography datum independently, i. e, how to get a map in a projection by using the datum gotten from a map in another projection.
这两个问题是，位置信息采集的重用或投影方式无关问题（即在某种地球投影地图上录取的地理位置信息可以按另一种地球投影投影或制作地图）；
The research on educational history ought to take firsthand datum as the base, emphasize the interpretation of datum and serve as a way to foster individuals' thinking modes.
教育史研究应当以第一手资料为基础，重视对资料的解读，并为培养个体的历史思维方式服务。
It has the function of datum setting and preservation and self-diagnosis for the effectiveness of the datum.
具有基准设定和保存的功能以及基准有效性的自诊断功能。
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.
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。
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.
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。
Some problems such as the foundation of dynamic fictitious datum station, the neural network framework of fictitious datum station are discussed. The method of neural network training is described.
讨论了建立动态虚拟基准站的方法及基于神经网络的虚拟基准站的结构，并对这一神经网络进行了训练。
Make out a simple sum about the making requirement of the project datum of the multilayer PCB, and bring forward some advice about improving the quality of making the project datum.
对多层印制板工程资料的制作要求做出简要总结，并对提高工程资料的制作质量提出一些建议。
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；
The higher requirement of the former coordinate datum, height datum and gravity datum was in dire need of improvement and update in modernization.
提出了国家地理空间信息基准框架内改进与更新原有的大地坐标基准、高程基准和重力基准的建设道路及解决原则。
Thick datum choice: Has the non-processing surface, the elected non-processing surface takes the thick datum.
粗基准选择：有非加工表面，应选非加工表面作为粗基准。
The remote sensing datum, map datum, photo datum, document datum, DEM, and meta-data are included in the database.
数据库包括地图数据、遥感影像数据、文档数据、照片数据、数字高程模型以及各类数据的元数据信息。
Actually, floating datum is still horizontal datum, but the datum elevation of different CMP is variable.
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。
In each cylindrical section (measuring cylinder) coaxial with the datum axis a, the section line shall be contained between two circles 0.1 apart and perpendicular to the datum axis a.
在每一个与基准轴a同轴的圆柱面内(测量圆柱)，该截面线应包含和基准轴相距0.1两个圆圈之间。
The realtime datum, spatial topological datum, datum of facility property, and the function of operating the datum are enveloped in class of spatial entity, and then set up object of spatial entity.
将实时数据、空间拓扑数据、设备属性数据以及对这些数据操作的函数封装为空间实体类，建立了空间实体对象。
The class is the set of datum and operation of datum.
类是数据和数据操作的集合。
Fine datum choice: Must conform to the datum superposition principle, chooses the design datum or the assembly datum as far as possible takes the localization datum.
精基准选择：要符合基准重合原则，尽可能选设计基准或装配基准作为定位基准。
The method to synchronize two stations' measurements datum was given. Then with the synchronous datum, the way to get the location of the maneuvering target was given.
给出了一种同步两站数据时间的方法，然后用同步后的数据对机动目标进行定位。
Backing up the datum of the ILAS system with tape driver has many defects, such as the incompletion and insecurity of the datum.
用磁带机对ILAS系统进行数据备份有很多缺陷，数据的完整性、安全性差。
This paper studies the determination of datum station with GPS and the computation problems of the sound pulse signal received by the datum station of echo pulse receiver under water.
研究了用GPS测定基阵坐标，分析了水听器基阵所接收到的声脉冲信号的处理。
For gray model, the longer of original datum, the higher precision during smoothing processing of datum and the lower precision during natural logarithm processing of datum, vice versa;
就灰色预测而言，如果原始数据列较长，对原始数据进行平滑处理所得预测模型精度较高，而对原始数据进行取自然对数的处理所得模型预测精度较低；
To introduce GIS into dry index evaluation system can combine figures with datum expediently and adequately in order to express datum with geological figures' information adequately.
该系统建成后能实现对甘南县旱情信息的可视化查询和干旱等级评价。
To introduce GIS into dry index evaluation system can combine figures with datum expediently and adequately in order to express datum with geological figures' information adequately.
该系统建成后能实现对甘南县旱情信息的可视化查询和干旱等级评价。
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