查询词典 datum plane

In the shape analysis of stress surface contour of 3D footprint, the consistency of datum plane cannot be strictly controlled, so a descriptor insensitive to perspective transform is needed.

在立体足迹的重压面边界围线的形状分类和识别中，由于不能严格控制基准面方向的一致性，必须采取对透视变换不敏感的描述方法。

Obviously,once the definite height of datum plane is adopted,it means to establish a height system which may be used-in this area for a long period.

海岸工程基准面高低虽然不影响工程的实施与效果，很明显，启用一个基准面之后就意味着树立了一个高程系统，它将长期在当地起作用并带来广泛影响。

Fourthly, this paper standardizes the linear of the inductance sensor and analyzes its error. Then we discuss the angle error of the laser sensor and the datum plane error of the mechanism.

第四， 此外，本文还对电感传感器进行了线性校正及误差分析，讨论了激光传感器倾角误差，并对机械设计中的定位结构进行了误差分析，提出了改进的措施。

At present, the main approach for seismic data imaging is the prestack Kirchhoff time migration, however, violent variation of surface elevation makes the datum plane selection of prestack time migration very difficult.

目前该类地区地震勘探中主要的成像手段依然是Kirchhoff叠前时间偏移。但地表高程的剧烈变化使叠前时间偏移的基准面很难选择。

Datum plane and side planer or milling machine in the processing; face away from the machine only needs a general cross-section.

平面和侧面的基准面可在平刨床或铣床上加工；端面一般只需要距机横截。

So far the pattern of seismic prestack depth migration is the same as it abroad. Before the work of velocity building the original seismic data must be corrected on a datum plane, and then to make the prestack depth migration work.

目前我国叠前深度偏移的研究方向与国外基本一致，特别是在目前油田的实际勘探中，大多套用国外的模式，一般都是对原始资料校正在一个基准面后，然后开展叠前深度偏移工作。

Many of the elements below each constraint element PRO_E_DTMPLN_CONSTRAINT are used only for certain constraint types, so any given datum plane may contain fewer elements than are shown in the tree.

许多下面每个约束元素 PRO_E_DTMPLN_CONSTRAINT 只使用确定的约束类型，所以任何给定的基准平面可能包含比树里看到的少些的元素。

The system has avoided the traditional precision guiding rail needed by large area flatness measurement and established a high precision virtual datum plane in computer.

该系统摒弃了传统的大面积工件平面度测量所需要的高精度导轨等实物基准，而是通过在计算机中建立高精度的虚拟基准，达到了对太阳帆板平面度的高精度测量，并对这种特殊的仪器结构所造成的光斑特性进行了分析。

Average velocity: The distance traversed by a seismic wavelet divided by the time required, both often corrected to a reference datum plane.

平均速度：一个地震子波传播距离与所需时间的比值，其中距离和时间通常都被校正到一个参考基准面上。

Palaeogeomorphology is a main factor to control the development and distributing of the sedimentary facies like the geomorphology today which is affected by the factors such as the location of the area tectonics, weather, the change of the datum plane and the tectonics movements.

古地形地貌是控制一个盆地后期沉积相发育与分布的一个主要因素，同现在地貌一样，古地貌形态受到了所处的区域构造位置、气候、基准面变化及构造运动等因素综合作用的影响。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。