信封的摆动频率是描述的灰色地带。
The envelope of the beat frequency is depicted as the grey areas.
信封的摆动频率将永远固定在空间；没有角速度。
The envelope of the beat frequency will always be stationary in space; no angular velocity.
通常当闸门的水平摆动频率接近索的固有频率时，将产生横向共振。
In general, the flexural resonance occurs when the frequency of horizontal motion of the gate approaches the natural frequency of the cable.
目的观察异丙酚对离体气管上皮细胞纤毛摆动频率(CBF)的影响。
Objective To investigate the effects of different concentrations of propofol on cilia beat frequency (CBF) of isolated human tracheal epithelium.
通过改变砂轮转速、砂轮摆动频率、轴向进给量，获得了一些具有对比性的试验结果。
By changing the speed of grinding wheel, its swing frequency and the feed speed of shaft direction, different experiment results were got.
手表受磁后，磁力使得摆轮的摆动频率改变，于是齿轮系统的运转速度也就改变，手表走时发狂。
Watch magnetic, magnetic wheel makes the swing frequency change, so the speed of the gear system will change, watch.
加减速试验论证了尾鳍摆动频率、尾鳍后缘最大摆幅以及尾鳍的最大击水角度对鱼体速度的影响；
The test proves that the caudal fin oscillation frequency, the maximum amplitude of vibration of caudal fin, the caudal fin strikes the water angle influence the fish's speed;
类似地，幂指数定律模式也可在美国1919 - 2009年1月间的工业生产的月度摆动(绝对值)频率和级别中被发现(表2)。
Similarly, the power law pattern can be seen in the frequency and magnitude of the monthly swings, positive and negative, in us industrial production from 1919 to February 2009 (Exhibit 2).
现在一个电脑的处理器的频率通常是3.0GHz(每秒30亿次时针摆动)，这与三年或四前年制造的电脑没有太大的变化。
A modern PC typically has a processor running at 3.0ghz (3 billion clock ticks per second), little changed from a PC made three or four years ago.
目前成熟应用的主要是电磁驱动式的，分为摆动式和直动式，具有雕刻频率高、雕刻质量好的特点；
The high frequency electromagnetic actuator in use at present was classified as swing electromagnet and directacting electromagnet.
应用矩阵迭代摄动法，对摆动活齿传动系统的固有频率进行了求解和分析。
The natural frequencies of the vibration system are obtained by using the iterative perturbation method.
频率响应可分为物理微音效应、电子装置鸣响和摆动、声鸣响三组。
Subsets of frequency response are physical microphonics, electronic ringing and oscillation, and acoustic ringing.
不适当的调节会引起反冲力以及垂直度和重复性误差，并且可能造成机器振动(频率高时会快速摆动)。
Improper adjustment will result in errors of recoil force, verticality and repeatability, and also result in machine vibration (it will rapidly swing if the frequency is high).
本文给出了匀质椭圆柱体在平面上作无滑动的微幅摆动之固有频率的两种计算方法，得到两个固有频率的计算公式。
This paper gives two kinds of calculation methods of natural frequency of a mass-even elliptic column which oscillates in miniamplitude on a plane, obtains two formulas of natural frequency.
通过模态分析发现，浮吊结构的振型主要表现为主钩钢丝绳-吊重系统摆动和臂架振动，振动频率都很低；
Through the modal analysis, it is found that main vibration modes of floating crane structure are swing of rope-load system and vibration of boom, and the vibration frequencies are low;
故障分析表明：经长期使用的叶片在修理厂大修时，为满足叶片摆动量要求在榫头底面涂尼龙胶，会使叶片自振频率有较大幅度下降；
Analysis based on the failure characteristics indicates that the nylon gum on bottom of dovetail and the long term operation can significantly reduce the natural frequency of blade.
随着身体的摆动，脚步也开始有频率。
Your foot starts tapping as your body sways from side to side.
通过本文的理论推导表明，扭转振动摆动辗压的效率与振动频率和进给速度成正比，扭转振动摆动辗压成形的成形效率比纵向振动摆动辗压成形的成形效率高。
The theoretical derivation shows that the vibro-rotary forging efficiency is directly proportional to the vibration frequency and feedrate and higher than that of longitudinal vibration forging.
应用矩阵迭代摄动法，对摆动活齿传动系统的固有频率进行了求解和分析。
The natural frequencies of the vibration system are obtained by using the iterative perturbation me…
应用矩阵迭代摄动法，对摆动活齿传动系统的固有频率进行了求解和分析。
The natural frequencies of the vibration system are obtained by using the iterative perturbation me…
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