中心线

Axis X of the frame is defined as seam axis, axis Z is defined as bisector of included angle, and axis Z is the axis of weld gun in the simulating environment.

将焊缝特征坐标系的X轴作为焊缝的轴线，将Z轴作为焊缝的中心线，Z轴即为仿真环境下的焊枪的轴线。

Neck length is measured from center of head to base of collar; head-stem offset, from center of head to line through axis of distal part of stem; stem length, from medial base of collar to tip of stem; and angle of neck, by intersection of line through center of head and neck with another along lateral border of distal half of stem.

头中心至领基底的距离为颈长，头中心至柄远端部分轴线的距离为头－柄偏距；领内侧基底至柄末端距离为柄长；股骨头颈中心线与柄下半部外侧缘及其延长线的交角为颈干角。

The so called symmetric and antisymmetric Lamb waves are no longer symmetric and antisymmetric around the center line in the flat plate.

3在波结构上，对平板而言，所谓的"对称"和"反对称"Lamb波由于材料的梯度特性而变得不再严格的关于中心线对称或反对称。

The effect of obstacle with special size on audibility factor of DW-ILS is analyzed,and the numerical results are obtained.

采用电磁感应定理计算出了特定尺寸障碍物对分米波仪表着陆系统航向天线辐射场的散射，得到了该障碍物对跑道中心线上可听度系数影响的数值结果，并对此做出了分析。

Because the non-precise measuring results of two-point method, autocollimation is adopted to measure optically central line of torpedo tube.

针对现阶段采用的两点法测量不准，使用自准直仪，通过光学方法测量鱼雷发射管中心线。

As a result, the features can be of 2-dimension, 1-dimension or 0-dimension, such as auxiliary face and center line axes.

这样，基本特征用一个体表示，模型中可以定义不同维数的特征，如辅助面、中心线等特征。

One is the method based on orientation and gradient and the other is the skeleton-distance averaging method.

2提出了两种确定等值线窗口的新方法：一种是方向与梯度结合的确定法，一种是中心线等分法。

If a cut plane goes through an axis or a symmetry line of standard components, they can be drawn as if they were not cut away.

当剖切平面通过标准产品的轴线或对称中心线时，可按不剖画出其外形。

We'll inform you when back to the center line.

当你回到中心线时，我们将通知你。

Base pads must be in line and flat within 1/64 so base will not rock.

所有显示的中心线(5处)必须在相应的直径中心的直径0.002的圆内。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。