圆环

By means of the numerical methods, the root of the resonance frequency equation is solved, and by means of Ansys software and the finite element method, the torsional vibration mode of the thin ring is analyzed, and the academic value and the simulant value of the resonance frequency are compared.

利用数值方法，求出了共振频率的理论值；并利用Ansys软件，对薄圆环振子进行了有限元模拟，得到了其共振频率的模拟值。

Purified virus was observed by Electron microscopic,we finded the average size of the isolated virus was 70~80 nm,rotundity ,without viral envelope. The result showed that isolated virus was porcine circovirus.

将病毒纯化后进行电镜观察，病毒粒子直径约17nm，圆形，无囊膜，研究结果表明分离的病毒为猪圆环病毒。

Purified virus was observed by Electron microscopic,we finded the average size of the isolated virus was 70-80 nm, rotundity ,without viral envelope.

结论将病毒纯化后进行电镜观察，病毒粒子直径约17nm，圆形，无囊膜，研究结果表明分离的病毒为猪圆环病毒。

The segment of a larger circle rested, forming a sort

的圆环顶部，形成了一顶灿烂而沉重的王冠

The problem of divergence produced by using line-model to calcul ate the tension and coefficient of self-inductance of a circular current loop is discussed.

分析讨论了一些文献在计算载流圆环处于自身磁场受的张力和自感系数时使用线电流模型的不当所带来的发散问题。

And it is publicly recognized as a sign of union and satisfaction .

圆环也是公认的代表团结和圆满的标志。

Our team worked in the fields, heard the siren ring for a day on the back.

我们的队服务在领域，听见警报器圆环一天在后面。

Finally, sliding friction and wear Cu-Zr-Te alloy with four kinds of treatment was studied.

本文最后研究了四种处理状态的新型高强高导Cu-Zr-Te合金在M200型磨损试验机上与GCr15轴承钢圆环进行滑动摩擦的磨损行为。

He lets prince stand in above, thought:"walks again two steps, he will fall the cliff, will meet a cruel death, by that time, I can slip off the ring from his arm."

他让王子站在上边，心想："再走两步，他就会坠下悬崖，粉身碎骨，到那时，我就能从他的胳膊上褪下圆环。"

To move the circle while you are creating it, hold down the Spacebar.

要移动圆环，而要创建它，按住空格键。

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。