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- As a numerical example, nonlinear free and forced vibration phenomena of shallow spherical shells with sinusoidal corrugation are studied. 作为算例，研究了正弦波纹扁球壳的非线性自由和受迫振动现象。
- The main work are including: 1) Building the universal model for torsional vibration of ship propulsion shafting, and researching the common methods for free and forced vibration. 本文以船舶推进轴系为研究对象，查阅了国内大量研究资料，对轴系扭振的机理、计算方法以及一些关键问题进行了研究，其主要的工作包括： (1) 建立了通用的船舶推进轴系扭振计算模型，系统研究了扭振自由振动和响应计算方法，利用软件工程的基本方法，开发了基于VB.
- Parker R.G. and Sathe P.J., “Exact Solution of the Free and Forced Vibration of a Rotating Disk-Spindle System,” Journal of Sound and Vibration, Vol. 223, No. 3, pp. 445-465 (1999). 苏振文;“含压电制动器与感测器之复合材料叠层板振动之数位控制;”硕士论文;中兴大学机械研究所(1995).
- Differential equations of transverse bending free and forced vibrations of stepped beam on Winkler s foundation are established by using generalized functions. 利用广义函数建立了阶梯形文克尔地基梁横向弯曲自由振动和强迫振动的微分方程，并求得其通解。
- Using the program, we finish the calculation of free and force vibrations of the shafting of " " fishing ship.The result is compared with that provided by Russian University of Leningrad. 用计算结果数据做校核计算，并与俄罗斯列宁格勒大学提供的计算说明书进行比较，得出结论。
- free and forced vibration 自由振动和受迫振动
- In the regenerative liquid propellant gun,the coupling oscillation of the fluid sys-tem in the reservoir including free vibration and forced vibration may be formed. 在再生式液体发射药火炮中，贮液室流体系统可能发生由自激振动与强迫振动构成的耦合振荡，在喷射结束期很可能形成共振。
- He is declared personal non grata and forced to leave the country. 他被宣布为不受欢迎的人而被迫离开该国。
- damped and forced vibration system 有阻尼受迫振动系统
- Alice is very free and easy when she's with her friends. 爱丽丝和朋友们在一起总是无拘无束的。
- He was declared persona non grata and forced to leave the country. 他被宣布为不受欢迎的人而被迫离开该国。
- I was outnumbered so I just law about me until I could break free and run away. 我寡不敌众，因此只得拚命乱打，直到挣脱逃走为止。
- He was in the control of evil men and forced to do wicked things. 他被坏人控制,被迫做了坏事。
- Computer Simulation Analysis of Damped and Forced Vibration System 有阻尼受迫振动系统的计算机仿真分析
- Due to a police mix- up, the robber go free and the victim is jailed. 由於警察搞混了，小偷逃逸而受害者却入狱了。
- Everyone is born free and equal. 人人生而自由平等。
- The professor was free and easy with his students. 教授对他的学生要求不严格。
- The family was burnt out (of house and home) and forced to leave the area. 这家人因为房子被人放火烧了，不得不离开这个地区。
- Your school sounds more free and easy than ours. 听起来你们的学校比我们的学校更随便一些。
- We were free and full of the zest of darers. 我们无拘无束并洋溢着敢斗者的热情。
