尽管凯斯·希勒全国房价指数及十大城市综合指数与去年相比有所上扬，但是截止到三月末的连续三个月这一指数环比连续下挫。
Although both the Case-Shiller national and ten-city indices are up year-on-year, the national index fell during the three months to the end of March.
利用数域上一元多项式环与整数环相似的性质，建立数域上一元多项式环中的孙子定理，并给出它的简单应用。
Using the similarity between polynomial ring and integer ring the paper establishes Sunse's Theorem in the polynomial ring in number field, and offers its brief learning and practice.
证明了任一环有代数封闭的扩张环，且实封闭域上的四元数体是代数封闭的，给出了代数封闭环的若干性质。
The two theorems are proved that any ring can be extended into an algebraically closed ring and that the quaternionic skew field over a real closed field is algebraically closed.
当环数增加时，过渡带衰减速度变快，通带形状更接近方形。
And a square passband shape was achieved for the larger ring number and the faster transition attenuation.
他同样用绕有许多圈数金属丝的环型或圈状物做了一个简单的接收器，在这个（开口）环形的末端是以微小间距隔开的小金属片。
He also built a simple receiver made of wire that was turned many times in a circle or looped. At the ends of the loop were small pieces of metal separated by a tiny amount of space.
利用该算法，可以在满足每个连接可靠性要求的同时，使整个环网所需的波长里程数最小。
This algorithm can minimize the ring total wavelength mileage, while guaranteeing the required reliability degree of each connection.
对比了不同边界模型、深度和瑞利数时的环型场的变化特征。
The features of toroidal field are studied for different boundary conditions, Rayleigh Numbers and depths.
在单元数足够多时，环簇式塞式喷管可比相同面积比的钟形喷管的尺寸更小，重量更轻，推力效率更高；
When numbers of the inner nozzle are enough, plug nozzle has less size, less weight and higher thrust efficiency than the bell nozzle under same area ratio.
提出了一种多项式泛函网络运算新模型，来求解任意数域或环上多项式运算问题。
The new computing model of polynomial functional network is firstly proposed and the solving polynomials computing problem in arbitrary coefficients fields or ring is discussed.
考虑环柄对循环图交叉数的影响，并且给出了循环图交叉数的上界。
This paper considers the handle affecting the crossing number of circular graphs and gives upper bounds for its crossing numbers.
为了获得稳定的谐波锁模脉冲，分析了有理数谐波锁模的理论和非线性放大环镜的传输特性。
To achieve a steady harmonic mode-locked pulse (HMLP), the theory of rational harmonic mode-locking and the transmission characteristics of a nonlinear amplifying loop mirror were analyzed.
利用带有不同拓扑荷数的两束涡旋光束进行共轴叠加，产生了一种新型光束双涡旋光束，其光强分布为双环结构。
A new type of the double-vortex beam is generated by the coaxial superposition of vortex beams with two different topological charges, whose intensity distribution is double-ring.
卟啉的平均分子结构简式衡量其取代基的组成，尤其对地质体中相同碳数的卟啉“ 混合物” 大环外取代基的构成十分有效。
The average condensed formula of molecular structure is effective to derive the composition of the peripheral substituents of porphyrins, especially geoporphyrins with identical carbon numbers.
本文刻划了PS-环与非奇异环的差距，给出了一个计算同调维数的公式。
Abstract In this paper, we investigate the difference between PS-ring and nonsingular ring, and obtain a formula of the homological dimensions.
本文刻划了PS-环与非奇异环的差距，给出了一个计算同调维数的公式。
Abstract In this paper, we investigate the difference between PS-ring and nonsingular ring, and obtain a formula of the homological dimensions.
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