natural harmonic 中文意思是什麼
natural harmonic
解釋
自然泛音-
Based on the geophone vibration formula, this paper presents the affective factors to the seismic data from high resolution geophone arrays and its main property specifications, such as natural frequency, damping coefficient, sensitivity, harmonic distortion, and alias
為此，從檢波器的振動方程出發，對高解析度地震檢波器性能指標（如自頻率、阻尼系數、靈敏度、諧波失真、假頻等）以及檢波器組合的連接方式對地震資料品質的影響進行了分析。 -
For a given harmonic map. it is natural to ask that when the harmonic map is " - irreducible or " - irreducible, and when is isotropic ? if is non - isotropic, how to calaulate its isotropy order ? these are all the elementary topics for harmonic maps
如果它是非迷向的，又如何確定它的迷向階?這些都是關于調和映照的基本問題。料的主要目的就是要解決這些問題。 -
The first natural frequency map in working space was drawn, which can be useful for selecting proper working position to avoid resonance or low - order harmonic oscillation
討論了頻率求解精度、收斂性與單元橫向彈性位移型函數以及單元數量之間的關系。 -
In this paper periodically perturbed hopf bifurcation to lienard equation with limited time delay is sdudied in detail. that is, the influence of small periodic perturbations on system exhibiting hopf bifurcation is sdudied. in particular, the excitation frequency and the critical natural frequency of hopf bifurcation in the cases of harmonic resonance. subharmonic resonance, ultraharmonic resonance, and ultrasubharmonic resonance is discussed. it is shown that in some parameter regions the sestyms exhibit harmonic solution bifurcation, subharmonic solution bifurcation, ultraharmonic solution bifurcation, ultrasubharmonic solution bifurcation and quasi - periodic solution
本文詳細研究了具有限時滯li nard方程的周期擾動hopf分支，即在該系統經歷hopf分支時，研究小周期擾動對系統的影響，特別是討論了擾動頻率與hopf分支周期解的固有頻率在共振、次調和共振、超調和共振、超次調和共振的情形。 -
In the context of quantized electromagnetic fields, it seems natural to also investigate the spatial properties of the field if the harmonic oscillators associated with the normal modes of the system are prepared in squeezed states. in 1975, two japanese scientists claims the thermal field dynamics theory, which can make a thermal mechanics statistical state equal to a pure state
將熱力學統計狀態中等效成一個純態來研究，是1975年日本的兩位科學家takahashi和umezawa在他們的熱場動力學理論（ thermalfielddynamicstheory ）中所提出的。 -
Sixth, low - order natural frequency has being obtained by the mode analysis experiment of machine tools, the dynamic parameters of combination surface jointed by bolts were identified by the synthesis of fea, optimal algorithm and harmonic response analysis
6 .研究了如何利用由實驗模態分析測得整機的低階固有頻率，通過將有限元分析和優化演算法、諧波響應分析相結合的方法，完成螺栓聯接結合面的參數識別問題。
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