查询词典 datum level

The floating model is defined with a datum point indicates the model's position. Each kind of models is associated with a set of pose parameters to describe its rotation about the three orthogonal axes and shape parameters to describe its scales along predefined directions.

零维的浮测标拓展到三维的浮测模型，除了具备可调整的三维位置参数外，还依模型种类增加了各方向的伸缩尺度、空间旋转等参数，可想像成一个漂浮在空间中，可移动、旋转、缩放大小以量测地物的模型。

However, if the trigonal control point and datum transformation model do not exist, the result of base station single point absolute location can be used as reference coordinate, the measured result of which can be geo_referenced to remote sensing image using some tiepoints on the basis of the first result above.

例如 ，在利用遥感影像分类时，需要在外业获取用于监督分类的训练样地或是分类结果精度检验样地的大地坐标信息；在进行稀有树种区域分布特征调查时，希望能在遥感影像上标识出每个树的具体位置；发现某河段发生污染时，很可能需要将它的精确位置以线或面的形式显示在其它矢量或栅格图层上。

In this paper, a simple method and procedure is given by which cone radius, journal angle, diameter and leg datum point size of a rock bit can be calculated respectively according to geometric relations of rock bit structure parameters.

本文给出一种根据牙轮钻头结构参数间的几何关系分别计算牙轮半径，牙爪轴倾角，牙掌基准尺寸，牙轮背锥角和钻头直径的方法及程序。

The numerical result shows that this method can correctly and quickly separate pure compress wave and pure shear wave from hybrid wave field with high precision, good boundary absorption, and the numerical process is stable, so it can be used to guide multi-wave multi-components seismic datum processing, and also point out that the method has difficulty to separate the coupled wave type such as surface wave.

数值模拟结果表明，该方法能够从混合波场中准确地分离出纯纵横波波场，且精度高，边界吸收效果好，计算速度快，计算过程稳定，可用于指导实际多波多分量地震资料处理，同时指出本文算法对相互耦合的波型无法实现准确分离。

On the base of analyzing the main factor to the erroralarming in LPMS,the alarming theory in view of wavelet's RMS was established by choosing minor scale of relative noise as alarming datum point,and the base noise which affect alarm was checked effectively.

在分析LPMS中产生误报主要原因的基础上，结合小波时频域分析特点，提出了基于小波均方值报警理论，并以秦山核电站一号机组为例，选择相对噪声较小的尺度作为报警基准，能有效地抑制背景噪声对报警的影响。

Two dimensional computer models of the average man, small man, and large man were developed to represent the geometry and movements of operator in seated postures on the basis of analyzing the earth moving machinery's characteristics. The human H point was taken as datum point and the posture angles were linked to easy operation, open vision and comfortable seat. The H point region was obtained by means of CAD technique. The region can be used for design and/or check purposes.

用计算机辅助设计技术，开发了求解工程机械驾驶员适宜驾驶位置的H点分布系统，分别绘制出了中等身材、小身材和大身材驾驶员适宜驾驶位置时H点区域图，该区域为驾驶员座椅和司机室内相关设施的合理布置提供了理论根据。

GIS technology can provide some spatial analysis tools for extracting some of these parameters such as the manning coefficient and calculating the average ground datum of internal point of every mesh unit and the mesh nodes.

模型参数指边界条件、初始条件、物理参数和模拟计算的控制参数。

Using application development tool Pro/Toolkit provided by Pro/Engineer and VC++, a surfrace-milling NC programming organ is created in this paper. It provides an interface with Windows style. It can obtain point cloud datum from the surface rebuild module expediently, and rebuild CAD modle with the data. Besides, it can input technical parameters from the human-computer interaction or the technical database. The data can be adjusted if it not suitable.

利用Pro/E的二次开发工具Pro/ToolKit和VC++创建曲面铣削数控程序生成器，并提供一个Windows风格的人机交互界面，能从曲面拟合模块方便地获取点云数据，并进行CAD造型，采用人机交互中或者从工艺信息数据库中传入相关加工工艺参数，如果对参数不满意，还可以进行修改。

The temperature examination used the temperature sensor or thethermo-element and carried on three-points examinations. These three points carried on the comparison and took the lowest point as the datum. Using the frequency changer's PI regulator realized closed loop automatic control.

温度检测采用温度传感器或热电偶，进行3点检测，并对这3个点进行比较，以最低点为基准，利用变频器内置PI调节器实现闭环自动控制。

Taking Yanhe as an example, the distinct transition point of flood season runoff time series by the impacts of human activities has been detected by way of mathematical statistics analysis. And meanwhile, based on the datum before distinct transition point, the forecast model is set up only with the data series before the distinct transition point. The difference between the value derived from the equation and the observed value is right the influence on flood season runoff induced by human activities.

以延河流域为例，采用数理统计方法推估获取人类活动影响下汛期径流时序的显著转折点，以显著转折点前的数据建立预测模型，对比分析汛期径流量的实测值与预测值，其差值即为人类活动对汛期径流的影响程度。

Smoking cigarettes adds to the Computer Desk Computer manufacturer computer mouse Computer Computerized collar knitter machine Conduit Bodies construction board Container Bag Control Arm Cooking Thermometer general levels of air pollution as well as damaging our health.

吸烟不仅对健康有害，而且增加空气污染程度。香烟雾含有多种有害物质：不仅有致癌化学物质、有某种能阻止氧气进入血液的气体，还有引起血压增高、心速加快的被称为尼古丁的物质。

He is one of my favorite actors.

他是我最喜欢的男演员之一。