查询词典 datum

The angled surfaces on this part, for instance, need to be located relative to the datum reference frame. If only angularity had been applied, the drawing would be incomplete.

例如，对于如图所示的零件的斜面来说，需要控制相对于基准的位置，若仅仅给出倾斜度的定向要求，图纸上给出的公差要求是不完整的，可选择给出面轮廓度的公差要求。

Theemphasis is to build anomalistic curves and surfaces from numbers of datum.

着重阐述了由大量数据点进行不规则曲线、曲面反求的完整技术。

So it can exactly reflects the depth of apparent resistivity of the anomaly. Furthermore, we can utilize geological datum from the borehole directly to calibrate the apparent resistivity anomaly near the borehole and reduce the ambiguity of the anomaly explanation.

在垂直地电剖面法中，由于电极是在地下供电，直流电流源的电场所受干扰比较小，电流线的走向是直接从地下到地表，场强较均匀而且场强值大，所以对深部岩溶分辨能力比较强，并可消除非岩溶体对异常的干扰，更能准确反映有视电阻率异常体的存在深度。

By looking up lots of datum, is built on an architechure of ASP and Access, using IIS as web server, programing with VB script and non-process query languge SQL.By logging on this system , because of its objective tools in Win32. It can give you a short-cut to build up a prototype of system application. The prototype could be modified and developed till users are satisfied with it.

经过分析，我们使用了基于 IIS 的 ACCESS+ASP相结合的动态网页技术，并运用 VB Script 脚本语言和非过程化查询语言 SQL 语句，利用其提供的各种面向对象的开发工具，首先在短时间内建立系统应用原型，然后，对初始原型系统进行需求迭代，不断修正和改进，直到形成用户满意的可行系统。

The approach can also be extended to solve other form and position errors when a cylinder axis is used as datum.

该算法还可以推广用于圆柱轴线为基准的其它形位误差评定。

In order to improve fault's disposal,the band-pass filter is used to filter the datum to get useful information.

对暂态谐波电流进行前向积分处理，使得故障分量进一步线性放大，可以获得明显的故障特征。

This paper integrate one software defects prediction model , using Bayes formula to analyze the affect factors which lead to result , This method not only can control some main factors of development project but also can provide some experience datum , which can prevent the same fault appearing again .

此方法不但能对现有开发项目的一些重要影响因素起到控制作用，还为今后的开发项目提供了一定的经验数据，预防同类错误的再次发生。

For the sensor datum is fused in the state space uniformly, so the algorithm can be extended to the dissimilar sensor systems easily.

由于传感器量测的融合在状态空间中统一进行，该算法可推广到异类传感器组成的系统中。

During construction of Donghai Bridge of Yangshan Deep-water Port, bedrock bench mark, which is an important surveying datum mark, played an important part in control survey and elevation transmission.

基岩标是重要的测量基准设施，在洋山深水港东海大桥的工程建设中发挥了控制测量与高程传递的重要作用。

The text analyses GPS observation model, the characteristic of kinds of errors fountain and the adopting measures in the observation, and processes the thorough research to Bernese GPS Software Ms-Windows Version 4.2. It makes the most stable satellites as the main error. The differential way adopts non-differential way and double differential way. The positioning precision of the single point is decimeter level. RMS is within 0.01~0.02; If the ambiguity right and without week skip, the observation datum of a EPOCH-BY-EPOCH can make the short base line（S0km）positioning precision reach centimeter level.

本文分析了GPS的观测模型、观测量中各种误差源的特点及应采取的措施，并对Bernese GPS Software Ms-Windows Version 4.2 软件进行了深入的研究，它是以最稳定的卫星作为主差，采用非差和双差两种差分方法，单点定位精度在分米级，RMS能在0.01~0.02以内；在模糊度已求解正确条件下，若没有周跳，一个历元的观测数据就可以使短基线（S0km）定位精度达到厘米级。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了