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1·The influence of gravity on the vibration period of inertia balance are analyzed.

分析了重力对惯性秤的影响、重力与惯性秤的振动周期的关系。

2·This paper presents a new method for calculating the natural vibration period of towers.

本文介绍了一种计算塔设备自振周期的新方法。

3·By solving equation group, the basic nature vibration period and vibration modes of this type equipment are obtained.

通过对方程组的求解，得到这种类型设备的自振周期及振型。

4·Relationship between vibration period of the system and control variables is discussed when chaos is controlled into single periodic state.

讨论了混沌被控制到单周期态时系统输出的振荡周期的变化规律与控制量的关系。

5·This paper discusses the method of determining the rotational speed of a full-closed compressor by means of measuring its machinery vibration period.

本文介绍通过检测机器的振动周期来间接测定封闭式压缩机转速的方法。

6·The paper studied the characteristic of structure of ancient brick and rock pagoda, proposed the formula of self vibration period for ancient pagoda.

研究了砖石古塔的结构特性，提出了对古塔自振周期的计算公式。

7·When the inertial balance is put into horizon, verticality and incline, the influences of gravity on vibration period of inertial balance are discussed.

分析了惯性秤水平、垂直和倾斜放置时，重力对惯性秤振动周期的影响。

8·When the extrusion temperature was increased, the pressure vibration frequency and critical slid length decreased, while the vibration period increased.

挤出温度升高，压力振荡频率减小，周期变大，外推滑移长度有变小趋势。

9·Dynamic characteristics tests show that the natural vibration period of steel frame can be prolonged with the reducing of connection rotation stiffness.

动力特性测试结果表明：随着节点转动刚度的减小，框架自振周期延长。

10·The theoretical values and the measured data on the installed unit show that this method can be applied to determination of the natural vibration period for a large-scale framed tower.

理论计算与实测数据表明，所述方法可以用来确定大型框架塔的自振周期。