查询词典 datum level

Furthermore, a new algorithm based on Fourier-transform technique combining with different calculations is proposed, which is suitable to measure steps. The new algorithm overcomes the disadvantages of old one needing datum reference and plane of reference, increasing this algorithm's utility.

基於傅里叶变换的波长移相算法，提出了结合差分运算的适合於台阶测量的新算法，克服了已有算法中需要参考基凖和参考面的缺点，提高了算法的实用性。

Snap lines can be assigned to a view, a datum plane or any geometry edge and then move with that view.

捕捉线能够被指定给一个视图，基准面和任何边线，并且，捕捉线会跟随视图移动。

In the planetary orbit more or less (is called ecliptic surface and take the revolution in the identical plane as datum).

行星轨道中或多或少在同一平面内（称为黄道面并以地球公转轨道面为基准）。

Height datum: Symmetry plane or the bottom surface.

高度基准上下对称面或底平面(Z = 0)。

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。

The father that if work,mad father, love annoys, disposition is too indrawn the be short ofing that the father of Mu Ne, resign oneself to adversity causes father easily to love is broken; Communicate time effectively between father and son, Mu Zizhi to be less than a hour on average to wait a moment every week, it is the cause that causes the child to become addiction.

如工作狂的父亲、爱愤怒的父亲、性格过于内向木讷、逆来顺受的父亲都易造成父爱的缺失；父子、母子之间的有效沟通时间每周平均小于一小时等等，都是造成孩子成瘾的原因。

These are vandal proof and they come with a locking mechanism.

这是野蛮的证据，他们来到了锁机制。