圆环

In this paper, we present an O time algorithm to solve the minimum circle-cover problem defined on circular-arc graphs based on the processor arrays with a reconfig-urable bus system which consist of a processor array and a reconfigurable bus system.

在本论文中，我们提出O(1)时间的演算法，以解决环弧图上最小覆盖圆的问题。我们的演算法乃使用可重组态汇流排系统之处理器阵列，它含有一处理器阵列以及一可重组态汇流排系统。

Applying the theory of Bessel function, the exact transfer matrix formulae of the asymmetric free vibration of the circular and annular plate elements with uniform thickness can be obtained.

应用贝塞尔函数理论，求得等厚度圆板和环板单元非对称自由振动传递矩阵的正确公式。

Circular plates with ring- st iffeners have been used frequently in practice.

具有加劝环肋的圆薄板，在实际工程中常常遇到，特别在给水排水工程结构中用得最多。

Critical pressures of the cylindrical shells stiffened by rings with semi-torus section and by circular tube are calculated and compared.

在公式推导的过程中，考虑了加肋的实际分布情况，并编制了计算程序，对半圆环界面加肋圆柱壳和圆管加肋圆柱壳的临界水压进行了比较。

In this sharp composite from the Hubble Space Telescope, Fomalhaut's surrounding ring of dusty debris is imaged in detail, with overwhelming glare from the star masked by an occulting disk in the camera's coronagraph.

在这幅来自哈勃空间望远镜的精细合成图像中，北落师门周围的尘埃环的碎片能够精细展现，并且在相机的日冕观测仪下，能够观测到被一神秘圆盘遮蔽的恒星发出十分耀眼的光线。

Furthermore, the interaction of L-C10HL and D-C10HL with cyclodextrin was also investigated by fluorescence excitation spectrum and circular dichroism spectrum.

利用荧光激发光谱和圆二色性谱研究了L-C10HL和D-C10HL与环糊精之间的相互作用。

The stability of the discrete system demand all poles of the closed-loop system should be within the unit circle.

离散系统的稳定性要求闭环系统的所有极点必须在单位圆之内。

The continuous process of after the course, hardcover book circle back use live cavity back, that is, the book sealed shell and the nucleus Raphe Magnus only book block of jiaji Division of the phase ring bond, and then lining, book and book-sealed shell system secure.

经过工艺的不断改革和提高，现今圆背精装书基本上采用活腔背，即书封壳的中缝仅与书芯的脊部相黏结，再利用环衬作用，将书芯与书封壳套合牢固。

The jet-shaped protuberance was found on collision region of copper tube with guard ring.

但同时也发现：加保护环后圆管对碰区会出现射流状超前突起现象。

In this paper,the mechanism of circle existing in nature is discussed,the circle contribution to mathematics is analyzed,a design of limit circle model for sustainable development for economics and society is put forward.

探讨了自然界圆形存在的机理，分析了圆对数学发展的贡献，提出了建立经济与社会可持续发展极限环模型的设想。

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。