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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。

Thus the circular section will require lesser concrete as well as lesser steel as compared to wall type pier section.

因而圆部分将要求少许混凝土并且少许钢与墙壁类型码头部分比较。

This paper has compared distribution of residual stress on the surface between circular and rectangular cold drawn section steel, and how to relieve the residual stress by means of high temperature heattreatment.

文中论述了该系统中的盲棋子空域的划分，通过对几种可选方案：矩形、正六边形、圆形的分析和比较，得出了在无线电盲棋导航系统中以正方形作为子空域最优。

Compared with the FFT-based computation to CAF, the presented method can scan the target only in certain circular sector instead of the whole ambiguity plane, which may decrease the computational load.

与基于FFT计算互模糊函数的方法相比，采用这种方法的优点是在检测目标时可以只扫描某个环形扇区而不用计算整个模糊平面，减小了计算量；另外，由于在计算互模糊函数时极角和极径的取样间隔可以任意选择，突破了时域采样间隔的限制，可在时延和频移上均得到高精度估计。

This result is visualized and further compared with the results based on line segment and circular curve-line error models.

以三次B样条曲线为例，给出了其建模及可视化结果，进一步地将该结果与折线及圆曲线的情况进行了比较。

Then three candidate modulation schemes exploiting spatial dimensions are proposed. At last, the three modulation schemes are compared by power efficiency and bandwidth efficiency. It shows that spatial quadrature amplitude modulation scheme is appropriate for long distance wireless optical communications for its high bandwidth efficiency and spatial circular symmetry.

参照传统时域信号设计方案，提出了三种空间调制信号具体设计方案，并从带宽效率和功率效率两性能上进行了比较，结果表明正交幅度调制具有带宽效率高、功率效率低的特点，而且采用的信号点越多其带宽效率就越高，另外其空间信号图案还具有圆对称性，因此非常适合在空间带宽有限的远距离无线光通信中使用。

Wave protection effects of circular arc wave walls and paraboilc wave walls are compared and analyzed,showing that curving wave walls are very effective in preventing overtopping .

文章中就圆弧型及抛物型曲面挡浪墙的防浪效果进行了对比，说明曲线防浪墙对阻止越浪是十分有效的。

The quantitative analysis of the questionnaire presented that, compared with the low-proficiency learners, the high-proficiency learners significantly used more circumlocution and self-repair.

问卷量化分析之结果显示，与低分组学生相比，高分组学生显著地较常使用婉转词语及自我修正(self-repair)。

With the rapid development of our country"s transportation and the implementation of the state"s the policy of the Great Development of the Western Regions, a great many tunnels will be built in elevations areas or circumpolar areas in the Big West. Compared with traditional tunnels in the cold area, these tunnels will take large size and require higher technology. Moreover, the extreme climatic conditions are very unfavorable for these tunnels.

随着我国交通事业的快速发展，特别是西部大开发和振兴东北经济政策的进一步落实，在西部的高海拔和北部的高纬度寒冷地区将陆续有大量的隧道建成，与以往寒冷地区的隧道相比，这些隧道的规模会更大、技术要求更高，而气候条件却更加恶劣。

Compared to 10 years ago we have many more options in terms of the ability to prevent progression to cirrhosis.

和10年前相比，在阻止肝硬化进展方面我们有很多的选择。

In other research, chondroitin is being investigated for use in several other conditions.

在其它研究，软骨素被调查用於几个其它情况。

They would make fun of him for having to work.

他们拿他的工作来开玩笑。