英语释义

1. the diameter of the pitch circle of a wheel

片语

pitch circle diameter电极圆直径，节圆直径

PCD Pitch Circle Diameter间隔圆圈直径

pitch and diameter螺距和直径

pitch to diameter ratio距径比

electrode pitch circle diameter[电子]

pitch throat diameter节圆喉径

bearing pitch circle diameter轴承节圆直径

PBD Pitch Circle Diameter节圆直径

Pitch h diameter节径

英汉例句

• both have the same pitch diameter at the top of the hole of internal threads or end of the pipe on external threads, and both have the same thread lengths or depths.

  在内螺纹的孔的顶端或者外螺纹的管的端部拥有相同的中径，而且拥有相同的螺纹长度和深度。

• the principle straightness error of cutting square in work-pieces can be controlled by choosing a suitable pitch diameter of the planetary gear in the machine tools.

  选取适当的车头行星轮的分度圆直径，可以有效地控制车方原理的直线度误差。

• by the use of the displacing enveloping drawing method, a set of exact formulae for calculating the virtual pitch diameter is deduced and verified by measured data.

  本文考虑了非对称三角形螺纹的螺距偏差和牙侧角偏差的各种组合对作用中径的共同影响，运用了包容图位移法，分析和推导出非对称螺纹作用中径的精确计算公式。

• briefed in the paper are the characteristics, work principles and operation procedures of the pitch diameter gauge and ovality gauge used to check coupling threads.

  简述了用于管接头螺纹检验的中径和椭圆度量规的特点、工作原理及使用方法。

• this article brings to light the internal relations and difference between single pitch diameter and actual pitch diameter by means of geometrical analysis of several parameters of pitch diameter.

  通过对普通螺纹中径诸参数的几何分析，揭示出其单一中径与实际中径的内在联系与区别。

• the pin gauges are used to measure the hole distance, the pitch diameter of the thread, etc.

  针规适用于机械加工中孔径、孔距、内螺纹小径的测量，特别适于弯曲槽宽及模具尺寸的测量。

• there are many ways to measure base-level pitch diameter of cone-shaped thread.

  检测圆锥管螺纹基面中径的方法有很多，但测量过程复杂。

• a simple, easy to use, correct and reliable for measurement of single pitch diameter of inner thread is provided.

  提供了一种简便易行、準确可靠的测量内螺纹单一中径的手段。

• the inspection of single pitch diameter in new national standard is more scientific, advance and practical than the inspection of actual pitch diameter in old national standard;

  论证了普通螺纹新国标检验单一中径的规定较其旧国标检验实际中径的方法，具有较好的科学性、先进性和实践性；

• the taper and pitch diameter of api round thread casing are two of the most important parameters.

  api圆螺纹的锥度和中径是两个重要的参数。

• the errors of the stand-off measurement and measurement errors made by pitch diameter gauge and ovality gauge are analyzed and compared.

  分析比较了紧密距测量以及中径和椭圆度量规测量的误差。

• pulleys are on the market that permit an adjustment in the width of the groove. the effective pitch diameter of the pulley is thus varied, and moderate changes in the speed ratio can be secured.

  带轮运行一定时间后，槽的宽度可以调节，这样带轮的节距是变化的，因此需要进行适当的调整以满足速度比的要求。