| 1. | A vibration period tends to decrease or remain constant as energy is lost, as is the case for a pendulum .
在损失能量时，振动周期倾向于减小或保持不变，如同单摆那样。 |
| 2. | A study of motion periods of two nonlinear elastic springs
两类非线性弹簧振动周期的研究 |
| 3. | Non - linear circuit vibrate - periodie bifurcation and chaos phenomenon
非线性电路振动周期的分岔与混沌现象 |
| 4. | Approximate analytical periods to oscillations of a spherical gas bubble in an ideal incompressible fluid
理想不可压流体中气泡非线性振动周期的解析逼近 |
| 5. | So it is the next work to search the variances periodicity and its response to global climate change in order to forecast future
寻找方差的振动周期和对全球气候变化的响应，对未来进行预测，是需要进一步研究的内容。 |
| 6. | The effect of opening and closing of joints will weaken the integral stiffness of arch dams , prolong their vibration periods and remarkably readjusting of stresses
横缝张合效应将削弱大坝的整体刚度、延长其振动周期、引起显著的应力重分配。 |
| 7. | The analytical results show that : the vibration period of the truss is short , and the stiffness is between the equivalent frame and shear wall structure stiffness
分析结果表明，该结构体系的振动周期较小，结构整体刚度较大，介于相同条件的框架和剪力墙之间。 |
| 8. | 5 the technical route of using fuzzy control for control of vibration cycle is put forward , and a fuzzy controller whose parameters can be optimized on line is designed
5 、提出了振动周期控制采用模糊控制的技术路线，设计了参数因子在线自整定的模糊控制器。 |
| 9. | The wave length of infra - sound is quite long : typical infra - sound from the eye of a typhoon has a 4 to 8 second cycle 0 . 25 to 0 . 125 hz , meaning that its wavelength is a few kilo - metres long
次声波的波长很长，例如台台风眼所产生的次声振动周期约秒0 . 250 . 125赫兹，波长便可达数公里。 |
| 10. | A new kind of physics experimental instrument of forced vibration and resonance is introduced , conducting research of the relationship between vibration period and to arms of prong
摘要介绍了新型音叉受迫振动与共振实验仪。通过音叉双臂与振动周期关系的研究，可以深入理解振动式液体密度传感器的原理及其应用。 |
