查询词典 datum

In this paper, the dynamic compressing experiments for the matrix material of the tungsten alloys which have been three different deforming(0%、 32.6%、 44.6%) processed have been performed by the experimental technology of separated Hopkinson pressure bar and many accurate datum have been obtained. Also the three materials have been compared with each other and analyzed. The results show that the optimized values are in a certain range to optimize the materials by changing their deforming technology. The parameters of constitutive model of Johnson-Cook have been fitted based on the datum. Then proceed to the next step, adiabatic shear band of these three matrix materials has been analyzed with finite element method. The result shows that the relations between stress and strain are different because of the differences of technical process of the three materials, but they are in great commonness in the material experiment and in great coherence in the distribution of time and space, which can been seen from the space distributing figures of plastic strain.

利用分离式Hopkinson压杆实验技术对三种不同变形量(0%、32.6%、44.6%)钨合金基体材料进行动态压缩实验，取得大量精确的数据，对比分析三种材料，结果表明通过改变变形量对材料进行优化，其变形量的优化值是有一定范围的；本论文拟合、确定了钨合金基体材料Johnson-Cook本构模型参数并对三种基体材料绝热剪切带进行有限元分析，结果表明三种材料由于工艺流程的不同，应力应变关系也不尽相同，但从塑性应变的空间分布图上体现了材料很大的共性和时间以及空间分布的一致性。

IDXP is an application layer of agreement use to invade measure entity exchange of datum.it can realize IDMEF news, structure text and exchange in binary scale of datum.also offered the safe characteristics faced and connected on the agreement such as the authentication,integrality and privacy of both sides.

摘 要：本文主要介绍在Beepcore C库工具包上开发一个IDXP协议的简易框架，IDXP是一个用于入侵检测实体之间交换数据的应用层协议，能够实现IDMEF消息、非结构文本和二进制数据之间的交换，并提供面向连接协议之上的双方认证、完整性和保密性等安全特征。

You can use a datum axis to create datum planes, to place items concentrically, or to create radial patterns.

你可以利用一个坐标片面作为你的草图的参考特征，或者是建立和定位的依据。

The recognition of datum plane cycle is the basis of high resolving power of sequence stratigraphy, because the formation of sequence and superimposed styles of inner sequence are controlled by datum plane cycle.

基准面旋回控制了层序的形成及其内部地层的叠加样式，因此，基准面旋回的识别是高分辨率层序地层学分析的基础。

In order to achieve accurate straightness measurement, the key to the question is to remove or reduce all kinds of errors which influence the stability of the datum line so that a stable datum line can be gotten.

论文中通过对现有直线度测量方法的分析认为，要实现高精度直线度测量，其关键是必须消除或减小影响基准直线稳定性的各种误差因素，从而建立一条高度稳定的空间基准直线。

An inspection method based on computer vision which can make road marking to track datum line was put forward, and the relevant datum line inspection device which can send out hint was developed.

提出了一种基于机器视觉的道路划线车跟踪基准线的检测方法，并开发了相应的基准线检测装置，当划线车跑偏时能够给出提示。

In CDM project, datum line setting is problem of a core, but the practice that still does not have unified, authority domestic and internationally to datum line setting at present, setting method is more confused, u.N.

概要： 清洁发展机制是一种促使各行业实现节能减排的有效方法，而水泥生产一直是我国能源消耗和污染物排放的大户，假如能开发和申请CDM项目，将会给水泥行业带来良好的环境效益和显著的经济效益。

Instead of using the middle-plane as the datum plane, the surfaces of the cavity are used as datum planes in this paper.

通过实验验证了这种表面模型能够处理由流行 CAD系统生成的复杂型腔模型

It is important and difficult for isochronous correlation datum of fluvial facies stratum in exploration and development of petroleum, while high resolving power of sequence stratigraphy based on the datum plane cycle is an additional feasible technical method for it.

河流相地层的等时对比一直是油气勘探开发的重点和难点，而基于基准面旋回的高分辨率层序地层学则为此增添了行之有效的技术手段。

Establishing datum plane is the base assessing surface parameter. It is important to set up perfect datum plane in engineering measurement as well as geometry parameters' shape and positional error inspection.

基准平面的确立，是进行表面参数评定的基础；建立理想的基准平面，在几何量形位公差检测及相关工程测量方面具有重要作用。

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