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Different disturbance frequencies have different effects on void wave instantaneous velocity probability distribution.

不同外加扰动频率对空隙率波瞬时波速概率分布的影响不同。

Twenty sinewaves of different frequencies may be conceptually complex to us, and the output of a symphony orchestra even more so, but to an amplifier both composite signals resolve to a single instantaneous voltage that must be increased in amplitude and presented at low impedance.

二十种不同频率的正弦波可能对我们来说概念上有点复杂，交响乐团的输出会更多，但是对于一个功放来说，混合信号会分解到瞬间电压（瞬间电压必须在振幅中增加，并且在低抗阻中显示。

Measurements of interdigital capacitance were performed at room temperature for frequencies 0.1 kHz,1 kHz and 10 kHz.

采用溶胶-凝胶法和自旋涂覆技术在二氧化硅为基材的梳状电极电容器上形成有机硅酸酯的气敏涂层。

Passive intermodulation products due to metallic contact nonlinearity at microwave frequencies can have severe effects on system performance.

微波频段由于金属接触非线性引起的无源互调可对系统性能造成严重影响。

These frequencies will interpenetrate everything in this realm marinating even the physical structures in its higher vibratory field, and as a result, stimulating all life to a new vibratory rate.

这些频率将渗透在这一领域内的每一件事，甚至浸入在更高振动域内的物质结构，而结果是，鼓舞所有生命到一个新的振动率。

Methods Twenty-four patients and 16 normal human controls were enrolled into this study. The frequencies of CD4+, CD8+ and CLA+ T cells intracellularly expressing IL-4, IL-5, IFN-γ or TNF-α were detected by flow cytometry.

采用流式细胞仪，检测外周血表达不同胞质内细胞因子（包括IL-4、IL-5、IFN-γ、TNF-α）的CD4+ T、CD8+ T、CLA+ T细胞亚群的频数。

Calculating formula of wave impedance is obtained by main values of the inverse tangent function of phase_shift at two neighboring frequencies and the corresponding integral character of phase_shift is denoted as the convergent criterion of wave impedance inversion.

利用复合反射系数中多个频率点的相移反正切函数主值，给出了波阻抗的计算公式，并把套管-地层环空间介质中波的相移的整、实特性作为波阻抗反演收敛的判据。

Signals on frequencies above 30 MHz normally pass through the ionosphere and into space.

信号在频率在30 兆赫通常通行证之上通过电离层和入空间。

Results Acute oral LD50 were 278 mg/kg and 56.2 mg/kg in rats and mice respectively, while dermal LD50＞2 000 mg/kg and inhalative LC50＞3 000 mg/m3. Skin and eye irritancy were estimated to be negative and mild respectively. Cumulative coefficient was 2.3 and allergic rate was 0%. A negative result was observed in Ames assay while increased frequencies of bone marrow micronuclei and spermatocyte chromosome aberrations were noted in the high dose (11.24 mg/kg) group.

结果 大小鼠急性LD50分别为278 mg/kg和56.2 mg/kg；大鼠经皮LD50＞2 000 mg/kg；急性吸入LC50＞3 000 mg/m3；无皮肤刺激性，轻度眼刺激性；蓄积系数2.3；致敏率为0；Ames试验结果阴性；微核和染色体在高剂量组(11.24 mg/kg)与阴性对照组相比有高度显著性差异(P＜0.01)；大鼠90天亚慢性经口的最大无作用剂量为2.825 mg/kg。

By the principle of penalt function, the irrotational fluid field is constrained, and author has proposed the Difference Method for distinguishing fluid vortex modes among the natural modes of coupled systems. Author has calculated the real frequencies with the extra deductive method, and discussed the influence of the numerical solution due to the irrotational constraint.

对于流体有限扰动时的非线性耦合系统的有限元分析作了一些探讨，给出了非线性系统的基本方程、变分原理及有限元方程，并具体地导出了三维几何非线性流体单元的切线刚度公式，采用增量形式的Newmark预报——校正逐步积分法计算系统的动力响应，由Newton-Raphson迭代法及其修正方法求解系统的非线性方程组，还列出了不平衡力余量检查和位移迭代增量检查等迭代收敛判断准则。

A historical region of southwest France between the Pyrenees and the Garonne River. The duchy of Aquitaine was joined with France after the marriage of Eleanor of Aquitaine to King Louis VII in1137, but its possession was disputed after her subsequent marriage to Henry II of England.

阿基坦法国西南部一个历史地区，位于比利牛斯山和加隆河之间，在1137年阿基坦的埃莉诺与国王路易斯七世结婚之后阿基坦公国加入法国，但当她再嫁英国亨利二世后，其归属权便受到争议

There are moments when I look at the smiling , happy faces of my expectant staff and wonder how they will cope when confronted by an outraged housemaster along with an unrepentant and recalcitrant bleached blond teenager in 18 years ' time .

有时候，我看着那些满怀期待的员工微笑，幸福的脸，想着当他们遇到一位愤怒的宿舍管理员和一位不知悔改，叛逆，而且将头发染成白色的18岁少年时，他们会如何处理。