查询词典 datum mark

Historically, datums have been based on ellipsoids that best represent the geoid within the region the datum is intended to map.

历史上，大地基准面一般基于与制图区域大地水准面最接近的地球椭球面构建。

By looking up lots of datum, we selected ASP as developing tool, SQL2000 as database developing tool, empoldered a student document management system based on ASP which uses B/S mode.

经过分析，我们使用 ASP 作为开发工具，SQL2000作为后台数据库，开发出了以B/S为模式的基于ASP的学生信息管理系统。

By looking up lots of datum, we selected ASP as developing tool, SQL2000 as database developing tool, empoldered a student document management system based on ASP which uses B/S mode.

摘要学生档案管理系统是典型的管理信息系统，其开发主要包括后台数据库的建立和维护以及前端应用程序的开发两个方面。

On the basis of getting the true and reliable monitoring datum, the methods of diagnosis algorithm based on state predicting are also discussed in this paper. A method based on BP artificial neural network is presented. A diagnosis model is also designed and emulated. The results of the emulations show that the algorithm is obviously better than that of the traditional three-ratio method, and the algorithm can accurately makes good judgments on the faults base on qualitative and quantitative analysis.

在获得真实可靠的监测数据的基础上，还进行了运行状态预测的故障诊断方法的探讨，提出了基于BP神经网络的故障诊断方法，建立了一个诊断模型，并对该模型进行了仿真，仿真结果表明该算法明显优于传统IEC三比值法等故障诊断方法，能够比较准确地定性和定量地对故障做出判断，为电力运营部门提供有用的决策依据。

Firstly, we simulate the signal received by OTHR in each antenna according to the real working condition, and save the signal datum in file. Secondly, we develop the signal processing program and the visual users interface. Thirdly, we utilize the simulation system to analyze Linear Frequency Modulated Continuous Wave OTHR system and Binary Phase-coded Continuous Wave OTHR system. Finally we compare the performance in suppression of interference of these two kinds of OTHR system.We achieve two aims in this simulation system.

本文首先根据OTHR的工作环境模拟OTHR各个阵元接收的回波信号，并将其保存为数据文件；然后根据OTHR的系统结构，编写信号处理程序，并给出可视化用户界面；最后利用OTHR仿真系统，对二相编码连续波和线性调频连续波这两种发射波形的OTHR作抗干扰性能分析。

And you'll build the firewalls to protect your datum?

而且你们需要建立防火墙来保护你们的资料。

According to the design principle and basic characteristic of the gear shaper cutter , its rake angle and top face are adjusted, and the cutter blade projection on the datum plane is modified appropriately to finish the profile modification of K-teeth in gear shaper cutting process.

针对插齿加工过程中K形齿的修形问题，根据插齿刀的设计原理和基本特点，提出了以改变插齿刀的前角和前刀面形状来改变切削刃在其基面上的投影，达到在插齿加工中对齿形的修形的目的。

Project construction is in the national spatial coordinate reference frame, based on the use of high-tech means of Geodesy, in Baotou city, the information on outcomes and quality of the original plane, gravity surveying and mapping information, etc. Based on the results, in accordance with unified planning and overall design principles, laid covering the city's domain sets plane, elevation, gravity field information based on the integrated control network formed by the geodetic datum, elevation and gravity reference base composed of high-precision, three-dimensional center of the earth and practical reference Baotou modern surveying and mapping system for the "Digital Baotou" construction and large-scale mapping projects such as surveying and mapping provides a unified spatial orientation reference.

项目建设是在国家空间坐标基准框架的基础上，利用大地测量的高新技术手段，在包头市原有平面成果资料和水准、重力资料等测绘成果的基础上，按照统一规划、整体设计的原则，布设覆盖全市域集平面、高程、重力场信息于一体的综合性基础控制网，形成由大地基准、高程基准和重力基准等组成的高精度、三维地心、实用的包头市现代测绘基准体系，为&数字包头&建设和大比例尺测图等测绘工程提供了统一的空间定位基准。

During the process of camshaft measurement, the phase datum of the key pin or the locating pin can be determined precisely by using the minimum error method of curve symmetry and the cam nose position can be determined by using the minimum error method near the" sensitive point".

在凸轮测量中，采用曲线对称最小误差法，可精确确定键销或定位销的相位基准；采用&敏感点&附近最小误差法，可精确确定凸轮&桃尖&位置。

The system can analyze the sampling datum to get such main parameters of the ABS as the braking state, the braking time, the locking time, the wheel s...

实车测试结果表明，能较好地反映被测防抱制动系统各项性能的实际情况。

Yet, Edith says, there was always money in the bank.

但是Edith说，她的银行户口里面总是有钱。

We have created a series of files that resolve this problem--one for each day of the 40 days of purpose.

我们制作一系列的档案去解决这问题---一个为标竿40天中的每一天。