x
uploads/vibration.jpg

vibration n.1.振動,顫動;擺動;【物理學】振動。2.(心的)震...

vibration proof

The simplest form of wave motion consists of the combination of a transverse simple harmonic vibration and a uniform translation . 波動的最簡單形式是橫向簡諧振動和勻速直線運動的組合。

Any system capable of a free vibration without external force is a counter example, e.g. a wire in the piano . 任何一個無外力而能自由振動的系統就是一個反例,譬如鋼琴中的一條鋼絲。

In solids, the particles are held so firmly that their motion is restricted to vibration about fixed positions . 固體中的粒子結合得如此牢固,以致它們的運動只限于固定位置里作振動。

The spectrum curves determined for linearly elastic systems still have significance for nonlinear hysteretic vibrations . 線性彈性系統確定的譜曲線對非線性滯回振動仍然是有意義的。

The vibration is varied in frequency over a range on the order of 5 to 2, 000 cps, usually at a constant octave . 振動的頻率在5到2000赫的范圍內變化,通常用一常值的八階變化率。

Subsidiary costs for insurance premiums, inspections and ground vibration control can add up considerable amounts . 保險費,檢查和地層振動控制的輔助費用可增加相當可觀的數額。

The absorption peaks arising from unsaturated and aromatic vibrations are considered in chapter 3 and 5 . 由不飽和以及芳香化合物振動產生的吸收譜帶將在第三和第五章中討論。

The mix is placed in the form on the machine and is removed after a minute or less of vibration . 這種拌合物注入機器上的模型器內,經一分鐘或更少時間的振動后即脫模取出。

The energy of an atom or molecule is described in terms of translational rotational vibration and electronic energy . 原子或分子的能量,按平動轉動振動和電子能來描述。

These clocks depend on electricity and the vibrations of the atoms of a quartz crystal, and are very complicated . 這些鐘靠電和石英晶體的原子振蕩走時,是十分復雜的。

A vibration period tends to decrease or remain constant as energy is lost, as is the case for a pendulum . 在損失能量時,振動周期傾向于減小或保持不變,如同單擺那樣。

When the structural vibrations are in turn excited by engine operation, a closed loop relationship exists . 當結構振動是由于發動機工作所激勵時,存在一閉合回路關系。

The study of vibration is concerned with the oscillatory motions of bodies and the forces associated with them . 振動的研究涉及到物體的振蕩運動以及與此有關的力。

The vibrations are amplified electrically and can be heard through loudspeakers in the operating room . 這種震動通過電流放大后,就可以從手術室的擴音器中收聽到。

Equation(4-198)yields a first approximation for the change in the natural frequency of vibration . 方程(4198)給出了一級近似下的固有振動頻率的改變量。

An instrument of the second type makes use of a mental reed kept in vibration by an electromagnet . 還有一種類似的裝置,由電磁鐵維持金屬簧片不斷振動。

An instrument of the second type makes use of a metal reed kept in vibration by an electromagnet . 還有一種類似的裝置,由電磁鐵維持金屬簧片不斷振動。

Annoying sounds and inaudible vibrations have caused problems with some experimental wind machines . 某些實驗風力發電機確實存在著噪聲和無聲振動問題。

The nasal channel serves as nothing more than a resonator for the vocal vibrations that pass through it . 鼻腔的用途只是為通過它的聲音振動作共鳴器。