圆环

This paper had obtained the data related to porcine reproductive and respiratory syndrome,hog cholera and porcine circo virus by questionary , locale inquire and sample detecting for all kind of scale hogpen in Henan province.

通过对河南省不同规模猪场问卷调查、现场问询调查和采样检测，获取有关猪瘟、猪繁殖障碍与呼吸综合征、圆环病毒病等疫病流行病学的相关情况。

For her th' unfading rose of Eden blooms, And wings of seraphs shed divine perfumes, For her the Spouse prepares the bridal ring, For her white virgins hymeneals sing, To sounds of heav'nly harps she dies away, And melts in visions of eternal day

为她的th' unfading 上升了Eden 绽放，并且六翼天使翼流洒了神的香水，为她做准备配偶新娘圆环，为她的白色贞女hymeneals 唱歌，对heav'nly 竖琴的声音她消失，并且融解在永恒天视觉

Also the conformal transformation with complex variable theory can give an image of section of line to a circle and it could meet the condition to set mirror image currents before infinite half plane region.

磁场求解的场域满足磁势的拉普拉斯方程，可以通过复变函数的保角变换方法把圆环域变换为矩形域并延拓为带状域，结合平面镜象电流方法求解。

The Olympic sign is composed of five interlaced circles of same size and different colors.

奥林匹克标志是由五个大小相同的圆环环环相扣组成的。

Finally, I'm going to assume that each circle isa month.

最后，我推断每个圆环代表着一个月。

By 1985, his successes in the ring allowed him to train and fight full time and, in 1986, he became World Middleweight Kickboxing Champion.

在1985年之前，他的在圆环的成功允许他训练，并且在1986年全时战斗，并且，他成为了世界中量级Kickboxing冠军。

Saturn, the planet we all know for its rings, rules over plants that are "knobby" and that live long perennial lives.

土星，我们全部为它的圆环知道的行星，在是"多节的"，并且居住长的四季不断的生活的植物的规则。

Circumferential field intensity can be calculated by solving Laplace's equation in field domain or by finite-element method.

计算带偏心母线的圆环铁芯磁场的不对称分布有助于分析母线型和套管型电流互感器的误差特性，从而提出科学的计量方法。

I would like to be the last leaver among my parents and husband.

我愿意在父亲、母亲、丈夫的生命圆环里做最后离世的一个，如果我先去了，而将这份我已尝过的苦杯留给世上的父母，那么我是死不瞑目的，因为我明白了爱，而我的爱有多深，我的牵挂和不舍便有多长。

In the paper, on the basis of aggregation of previous studies, the development of optical technology and development trends at home and abroad are introduced, the principle of Fresnel lens is summarized. In accordance with its principle, circle equidistant steps Fresnel lens design is described. And on this basis, based on Fresnel design, also based on a continuous upward spiral of the plane curve concept, incidence surface and the backlight is set up to greet Archimedes - Fresnel lens design formula and the Second parabolic type Fresnel lens design formula, and on this basis, the advantages and disadvantages of the three designs is discussed.

本文在充分了解非球面光学技术在国内外的发展状况和趋势的基础上，同时从菲涅尔透镜的光学原理出发，并根据它的工作原理推导了圆环等距菲涅尔透镜的设计步骤，并在此基础上依据菲涅尔的设计思想，同时依据平面曲线的连续又呈螺旋的构思，推导出了迎光面和背光面阿基米德型菲涅尔透镜的设计公式和二次抛物面型菲涅尔透镜的设计公式，并在此基础上讨论了这三种设计各自的优缺点。

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。