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- Learning high and low sounds are determined by vibration frequencies. 认识物体振动的频率决定了声音的高低。
- In order to verify the stability of some configurations, the vibration frequencies are calculated by using advanced B3LYP/3-21G method. 用更高级的B3LYP/ 3 2 1G方法 ;对某些构型的稳定性进行了验证 .
- In this article, the molecular vibration frequencies are determined by Laman scatters experiment, then the molecular structure is obtained. 该文通过样品实验,用拉曼散射测定分子的振动频率,进而分析出物质的分子结构。
- A simple computational method for the vibration frequencies and modal radiation efficiencies of clamped baf-fled square plate in water is described. 摘要本文提出了一种简便计算置于无限大障板上的方板水中振动频率以及辐射效率的计算方法。
- In this paper, the vibration problem of a chimney is studied from the aspects of chimney frequencies, wind vibration frequencies and Reynolds number. 本文从烟囱频率、风振频率和雷诺数三方面研究了该烟囱的振动问题。
- The interlaminar transverse shear stresses are the main factor, which leads to the delamination of laminated plate in the lower free vibration frequencies. 在低阶模态振动下,横向剪应力是造成层合板脱层的主要原因;
- The effects of temperature on the curve of dimensionless nonlinear vibration frequencies vs dimensionless amplitudes are especially investigated by numerical results. 文中还以大量数值算例研究了温度效应对幅频曲线的影响。
- EFFECT OF VIBRATION FREQUENCY ON DYNAMIC CONSTITUTIVE RELATIONSHIP OF LOESS? 振动频率对原状黄土动本构关系的影响?
- Reagarding the inertia force of rotor as the force acting on the shaft, the effect of thermal expansion upon the natural transversal vibration frequencies of rotor system is studied by a new nonlinear asymptotic method. 摘要把转子的惯性力看成作用在轴上的外力,采用新的非线性渐近法研究热膨胀对转子系统固有横振频率的影响。
- The vibration frequency of the vocal cords determines the pitch of the voices. 声门震动的快,决定声音的基本频率(即音高)。
- Relationship between jointed slab and void of elastic foundation and acoustic features of resonator is studied by acoustic vibration. The vibration frequencies of jointed slab with or without void are calculated and analyzed by finite element method(FEM). 采用声振法研究接缝和弹性地基脱空与声学特征变化的关系,利用有限元方法分析了有、无脱空接缝板的振动频率。
- Moreover the vibration frequencies of the plate are comput-ed using iterative method, which begins with the in vacuo eigenfrequency and continues until in-water eigenfrequency con-verges. 从真空中模态特征频率出发用迭代法直到水中频率收敛为止而得到水中方板的特征频率,进而计算了方板的棤态辐射效率。
- Moreover the vibration frequencies of the plate is computed using iterative method, which begins with the in vacuo eigenfrequency and continues until in-water eigenfrequency converges. 从真空中模态特征频率出发用迭代法直到水中频率收敛为止而得到水中裂纹圆板的特征频率。
- Fermi resonance appears when a fundamental vibration frequency lies closely to an overtone or combination frequencies. 如今从原子到超分子、凝聚态物质都可归属为分子范畴]。
- The vibration frequency is given by (4. 25), except that m is replaced by the reduced mass. 振动频率在(4.;25)中给出;只是m用折合质量代替。
- The barrier rock tends to slake upon submersion, developing vibrational frequencies which increase in amplitude in proportion to the water load. 有一个巨石开关潜在水中上下缓和; 促成水所承载震动频率的震幅到达平衡的境界.
- It is for telemetering the vibration frequency, dynamic stress and temperature of turbine blades under dynamic state. 用于涡轮机叶片在动态状态下对其振动频率、动应力和温度进行遥测。
- The ground state structure and vibrational frequencies of H8TPyP6+ were calculated using density functional theory (DFT) at the B3LYP/6-31G* level. 采用密度泛函理论(DFT)方法在B3LYP/6-31G*水平上优化H8TPyP6-的基态几何结构并计算了振动光谱。
- The Natural Vibration Frequency were obtained by galerkin method and multiple-dimensioned method. 通过伽辽金方法和多尺度法求解,得到了悬索的各阶频率计算式。
- The vibrational frequencies and vibrational modes of reactants, precursor complexs, transition state, successor complex and product were analyzed. 分析了反应物,前驱配合物,过渡态,后继配合物和产物的振动频率及振动模式。
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries