1.
Study on Mechanism of Vibration Frequency of Free Site in Microseism Test;
地脉动测试自由场地自振周期的机理研究
2.
Calculation & actual measurement method on natural vibration period of tall buildings
高层建筑结构的自振周期的计算与实测
3.
Study on natural period of homogeneous rock slope and its estimation method
均质岩石边坡自振周期及其估算方法研究
4.
Comparison analysis of natural vibration period of frame-shear wall structure under different constraint conditions
地下室不同约束条件下框-剪结构自振周期对比分析
5.
seismometer free period
地震检波器自由振荡周期
6.
In addition to amplitude and wavelength, a periodic wave is characterized by its frequency.
除了振幅和波长，周期波有它自己的频率。
7.
Periodic Motions and Bifurcations of Multi-degree-of-freedom Vibro-impact Systems;
多自由度冲击振动系统的周期运动和分岔
8.
The Period of Micro-Amplitude Vibration of a Ball in a Free-moving Circular Concave
球在可自由移动的球形空腔内作小振动的周期
9.
QUASI-PERIODIC MOTIONS OF A THREE-DEGREE-OF-FREEDOM VIBRATING SYSTEM WITH TWO RIGID CONSTRAINS
三自由度双侧刚性约束振动系统的概周期运动
10.
A single cycle of such a disturbance.
这种振动的一个周期
11.
Stabilty and Bifurcatuons of Periodic Moton in a Two-degree-of-freedom Vibro-Impact System;
一类两自由度碰撞振动系统的周期运动稳定性与分岔
12.
Taiji Graph Reflects the Most Basic Cyclical Motion,the Simple Harmonic Vibration
太极图反映了自然界最基本的周期运动——简谐振动
13.
The higher modes have shorter periods than the fundamental mode and, moreover, they have higher velocities.
高振型波比基阶振型波周期短，波速高。
14.
The microseism source excitation model and the relation between the magnitude and vibration cycle
微震振源激振模型及振动周期与震级的关系
15.
Each machine cycle takes 12 oscillator or clock cycles.
每个机器周期为12个振荡器或时钟周期。
16.
Vibration Localization in Ordered and Disordered Periodic Double-Leaf Stiffened Panels;
周期和失谐周期加劲双层板中的振动局部化
17.
Transition in the Periodic,quasi-Periodic and chaotic calcium oscillations
周期,准周期和混沌的复杂钙振荡之间的转换
18.
Vibration Attenuation and Isolation of Two-dimensional Periodic Composite Thin Plates;
二维周期性复合结构薄板的减振隔振性能研究