圆环

On a smooth and insulating ring of radius R there is a small ring of mass m and carrying charge q.

一半径为R的光滑绝缘大圆环上有一质量为 m带电为q的小环。

This paper analyzes the Michelson interference and presents a method to measure circle diameter of interfering images using image sensor and computer.

通过对迈克耳孙干涉图样的研究，提出了应用图像传感器和计算机测量圆环直径的方法，该方法也适用于牛顿环等光学实验的图样的分析。

In this thesis, the Round Link Connectors wide used in the minerals conveyance equipments was studied.

本文对目前在矿山运输设备上广泛使用的圆环链接链环进行了较为深入的研究。

Homology analysis showed that the sequence of GoCV-yk01 had 91%-93 % similarity to that of Taiwan and Germany strains.

基因组序列分析表明，浙江永康株GoCV-yk01全长1821bp，具有圆环病毒共同的与病毒复制相关的茎环结构和Rep蛋白保守基序等特征，它与德国、中国台湾发表的序列在全基因组水平有91%～93%的同源性，在Rep和外壳蛋白的氨基酸水平有94%～97%的同源性。

A substantial rubber pad was fitted to protect the pilot from injury in the event of a rough landing, the range/base setting was modified to two similar knurled rings with their own scale and indicator, and the lamp changing was also made easier.

安装一个橡胶垫，在万一发生硬着陆的时候保护飞行员免遭伤害。射程和基准设置修改为两个相似的压调整圆环，两个环有各自的刻度和指示器。灯泡更换也更容易了。

III.Rafts and dories may have taut perimeter lines threaded through the loops provided.

III。筏和舫上应该有系紧的，带螺纹的，穿过圆环而环船的绳。

Linked with climb ring, triangle ring and ring is made of high-quality carbon steel plate by stamping, copper-coated Ni-Cr layer.safety belt is treated by high temperature which made it harder and more safety.

所配攀登挂钩、三角环、圆环等均用优质中碳钢钢板冲压而成，表面涂镀铜镍铬层。

There are three rings, shaped spacers that keep the rings above the base with the clock face, and a hardwood dowel rod.

这有三个环，作为基础使得圆环在表盘正上方的支柱，和一根硬木杆。

Before conducting the study, students believed that Heat could not influence gas and liquid volume.Matter didn't have thermal expansion. Metal ring's diameter will shrink after heating. The melting quantity of salt is much quicker and faster than sugar in the same temperature or water. Only metals can conduct heat, but not wood, glass, plastics. The quantity of heat is by steam way disappearing.

一、学童对「物质与热」的迷思概念有：(1)「热对气体、液体体积不会有影响」的概念，(2)听过热胀冷缩的语词，但是对原因不明了，(3)金属双圆环加热后，内环孔的口径会变小，(4)同温度且等量水，盐的溶解量比糖多、也比糖快；(5)木材、塑胶、玻璃不会传热，金属才会传热；(6)以为热量是以水蒸气方式散失，(7)冷气机应安装在高处，冷房效果较佳；(8)误认为金属是良好的保温材质。

Meltzerr right hand at the top of the frame.Second,he uses aBookwalter pediatric ring retractor system to keep the vaginal cavity open as the dissection progresses.Two retractors attached to the bottom of the ring maintain downward and lateral pressure wit你好n the cavity.

其次，Dr.Meltzer用了Bookwalter小儿科圆环牵引器系统来保持阴道张开，以利整个切割手术进行，环底附着的两个牵引器则维持了阴道向下和侧面的压力。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。