圆周

The usually circular area in which the image is rendered by the lens system of an optical instrument.

视'。''区光学仪器的透镜系统所能看到的通常是圆周的区域

According to the invention, said texturing machine is provided with an element which lifts the thread in order to modify the length of contact of the cooling tube.

按照本发明为了改变冷却段的接触长度设有一个导纱杆，通过它使纱线在冷却段内在部分长度上与冷却管圆周无接触地导引。

Perform circular motion on a plane perpendicular to the waves.

在与波方向垂直的平面上作圆周运动。

In this case the impressions are placed on a pitch circle diameter 120° apart; this design allows the runners to be kept to a minimum length.

在这种情况下，型腔等分120度布置在圆周上；这种设计允许流道能维持最短的长度。

From the runner balancing standpoint it is simpler by far to situate the impressions on a pitch circle diameter and feed each impression directly from the sprue via a runner rather than to incorporate a main and branch runner system.

从流道平衡的角度考虑，把型腔分布在圆周的等分点上直接从主流道通过分流道注入每个型腔的方法，远比通过一级分流道和二级分流道系统的方法简便。

When described as a distance of an arc on the engagement pitch circle, it is called "Circumference Direction Backlash", when described as the shortest distance between two opposing tooth surfaces is called "Normal Line Backlash".

当描述为齿间弧度距离时，也叫做"圆周向回程间隙"。当描述为两啮合面的最短距离时，也称作"常规线性回程间隙"。

Because the object and parts of the microcosmic particle accord with the definition of charge group, it holds that electron does circular motion by the force of charge group and the constant is Planck constant.

因为物体和部分微观粒子符合电荷群定义，所以认为电子是以电荷群的作用力为向心力做圆周运动，并且常数是普朗克常数。

The text used a circular motion model with charged particle to explain the photoelectric effect.Keywords: Planck constant, photoelectric effect, point charge, quantum mechanics, charge group

文中还用以电荷群的作用力为向心力做圆周运动的带电粒子模型解释了光电效应。

The rotating chute planetary gearing of eoordination type double pot bell less furnace top of 750m 3 blast furnace in Laiwu Iron and Steel General Works can make chute to do circular motion around contral line or blast furnace of to do inclined motion, and it can achieve ideal charging of throat.

莱芜钢铁总厂750m3高炉双罐并列式无料钟炉顶旋转溜槽行星传动系统使溜槽既可绕高炉中心线会圆周运动，又能倾动，实现了炉喉的理想布料。

The light propagation characteristics and light spot converter principles inside a cone are studied based on the principle of total reflection of light.

提出了一种圆周型光斑模式转换器——透明玻璃圆锥体，根据光的全反射原理论证了光在该圆锥体中的传输规律和对光束光斑模式的转换原理。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了