查询词典 datum

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。

The result show there weren't M6.0 earthquakes beyond 4 years and M5.0 earthquakes beyond 2 year, the earthquake calmness is distinct in medium term; the M5.0 earthquakes intensified in short term, there were foreshocks in the epicenter region, in the same time, the fixed point precursor observational datum of Xinjiang appeared obvious short anomalies; and found a few imminent earthquak...

结果认为，6.8级地震前新疆6级地震平静4年多，5级地震平静2年，中期阶段地震平静显著；短期阶段5级地震显著增强，震源区出现前震活动，同时全疆定点前兆观测资料出现较为明显的短期异常并观测到少量的临震异常。不同孕震时段的异常特征是6.8级地震中短期预测的依据，因而也是当前经验预报的基础。

Using application development tool Pro/Toolkit provided by Pro/Engineer and VC++, a surfrace-milling NC programming organ is created in this ***. It provides an inte***ce with Windows style. It can obtain point cloud datum from the su***ce 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.

当用Pro/E的两从开收工具Pro/ToolKit和VC++创建曲里铣削数控程序生败器，并供给一个Windows威宽格的己机交互界里，能自曲里拟开模块便本地获取里云数据，并入行CAD造型，采取己机交互外或许者自工艺信做数据库外传入相闭加工工艺参数，如果闭于参数出无知脚，还否以入行改动。

In inside and outside pool loss datum,there is notonly the difference threshold,but also the distinctions of internal and externalenvironment lead to the sample heterogeneity,which brings about the measurementdeviation.

在内外部损失样本共享数据库中，不仅存在损失门槛差异，而且存在机构内外部环境等差异而导致的样本异质性，从而导致度量偏差。

It's bell can reach over a meter in diameter.

它的身体最大可以达到直径1米多。

Now they are overdue and I shall have to pay a fine.

现在他们过期了，我不得不付罚款。