圆的

Applying elliptic integral to calculate the electric potential due to uniformly charged ring, and then gets the general expression of the electric intensity by using gradient operation.

0引言对于均匀带电圆环电位和电场分布，在许多电磁学文献中仅仅只计算了与环面垂直的中心轴线和离圆环很远区域的电位和电场，而对其周围空间任意一点的值未作讨论。

An epicycloid in which the rolling circle equals the fixed circle .

旋转的圆和固定的圆大小一样时产生的外摆线。

The thermal curing mechanism and property of low dielectric films based PPSQ were studied by FTIR, Gaussian curve fitting and Spectroscopic Ellipsometry.

FESEM测试表明PPSQ在485℃之前能得到平整致密的薄膜；在485～525℃由于苯基的氧化分解有致孔的效果，孔洞结构为圆孔；在525℃之后圆孔将变成连孔，薄膜在局部将变得致密。

The results showed that the light seiner had decreased continually with the station in marine fishery declining constantly due to development of single trawlers and drift gill net; fishing vessels became large and fishing ground was pushed to deep water,significant development had been achieved in light-source fittings technology; Decapterus maruadsi was dominant in the catch, the percent of Pneumatophorus japonicus increased and Sardinella aurita fluctuated obviously.

结果表明：由于单拖作业和流刺网作业的发展，灯光围网作业持续萎缩，在海洋渔业中的地位不断下降；渔船大型化，渔场向深水推进，灯源配置及集鱼并灯技术取得重大突破；主要渔获物中蓝圆鲹占绝对优势，鲐鱼所占比例有上升的趋势，金色小沙丁鱼年间波动明显，颌圆鲹则快速减少，竹荚鱼近年来产量快速增长。

The precise location from the perturbanced ring image is an important step for hemispherical imaging and tracking system targeting object.

在半球成像系统实时跟踪目标的过程中，从受到光扰动影响的圆环像中迅速准确地提取圆环的中心是一个关键。

Relationship and control of axis sealing and internal pressure directly affects deformation process in tube hydroforming.

圆管液压成形过程中的轴向密封力与内压力的关系及控制直接影响到圆管的成形状态。

Based on the causing principle of hypocycloid ,this paper discusses the track of geometric elements in moving circle plain under different conditions, theapplication of hypocycloid in mechanical engineering is also briefly demonstrated.

本文根据内摆线形成原理，研究和讨论不同条件下动圆平面上的不同几何元素随动圆运动时形成的轨迹，并简要说明了内摆线在机械工程上的应用

For the purpose of this requirement, a wire crossing the imaginary plane more than once is treated as separate wires and the cross-sectional area of a wire having a non-circular cross-section shall be taken as the cross-sectional area of a circular wire having a diameter equal to the maximum width of the wire having the non-circular cross-section.

为了达 到这一要求，电线不仅一次通过这个假想面。计算横截面积时，散线或非圆截面的电线的横截面积等同于圆线的最大直径横截面积。

Linear is infinitely large section of the circle, the point is infinitely small circle, the spiral is the synthesis and other factors.

直线是无限大的圆之一段，点即是无限小的圆，螺旋则是国与其它因素的合成。

A rotating platform or disk, such as a lazy Susan.

转台旋转的平台或圆盘，如餐馆中可旋转的供客人取餐方便的圆转盘

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。