查询词典 frequency histogram

So the natural frequency in still water can be used in the case of moving water.

因此，可以用结构在静水中的固有频率近似结构在动水中的固有频率。

If a natural frequency of the tool-spindle system changes, there is a direct consequence for the process stability.

如果一个自然频率的工具主轴系统的变化，有一个直接后果，对这一进程的稳定。

Finite element analysis was about static and natural frequency analysis.

分析模拟的部分包含有静态部分的分析与模态自然频率的分析。

The natural frequency of water varies with temperature, pressure, minerals present, pH and other factors.

水的固有频率要受到温度、气压、含有的矿物、pH值等因素的影响。

It is shown that the method is convenient and feasible for the natural frequency estimation of frame structures in series.

结论表明，该方法对于框架串联结构的固有频率估算是方便且可行的。

The vibration mode and natural frequency of machine's frame are closely related to its resonance phenomena.

机身的振型和固有频率与其振动现象的发生有密切联系。

And the experiment was include of displacement and natural frequency experiment.

而实验的部分，则包含位移实验与自然频率之敲击实验。

Based on relevant documents, the paper also discusses the method of damage identification based on natural frequency changes.

同时还讨论了基于固有频率变化识别损伤的方法。

It has been proved that the natural frequency changes of structures contain the information such as location and degree of structural damage.

理论分析表明结构损伤前后的固有频率的变化包含了结构损伤位置和程度的信息。

The natural frequency and time of output stable signal of dial indicator are analyzed.

分析了百分表的固有频率特性和输出信号稳定时间。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。