原因

The structure with distributed interaction wall losses was shown to be effective in suppressing absolute instability in the event.

因此本研究分析了在磁旋行波放大器中的自发振荡其物理原因及其特性。

In addition,Various methods of stability analysis of wakes behind bluff bodies arediscussed,among which the general theory of absolute/convective instability is strictlyformulized from stability equations of viscous flow;the theoretical foundation of stabil-ity analysis of time-average flows is also discussed from basic equations of fluids,andthe reason for the stability analysis of time-average flow can predict the frequency inthe saturation state is explaned.

此外，讨论了钝体尾迹稳定性分析的各种方法，其中从粘性流的稳定性方程出发严格推导了绝对/对流不稳定性的理论公式；从基本方程出发探讨了采用时均流场作稳定性分析的可行性，并解释了用时均流场作稳定性分析可以更好地预示饱和频率的原因。

In the second chapter, we investigate propagations of desynchronous disturbances in synchronized chaotic one-way coupled map lattices. It is well known that spatiotemporally chaotic systems with large gradient couplings may show convective instability under the absolute stability condition of chaos synchronization. This convective instability is the key reason for the effective propagation of control signals.

时空混沌在不同的耦合系数情况下会表现出不同的动力学行为，用驱动实现具有强梯度耦合系数的时空混沌同步时，会观察到在绝对稳定条件下被驱动系统表现出对流不稳定性，这种对流不稳定性是在单个信号驱动下实现混沌同步的关键原因。

Therefore, the multi-stage interaction structures with losses and severed structure were more stability for absolute instability and gyrotron backward oscillations. This study presents a nonlinear analysis of typical oscillations, including absolute instability, gyrotron backward oscillation and reflective oscillation. The multi-stage gyro-TWT seem to increase effectively the start-oscillation currents of the absolute instability, gyro-BWO, and reflection oscillation.

所以在本研究分析中，藉由了解磁旋行波放大器中的自发振荡物理原因及特性，将有助於高功率放大器的设计，并且引用非线性程式进行磁旋行波放大器稳定分析，并且采用兼具隔离管及散布式损耗结构的磁旋行波放大器，同时提升绝对不稳定、磁旋返波振荡及反射振荡的稳定性能有效提升磁旋行波放大器输出功率和频宽。

At the very beginning of the introduction of Pi-pa music, it is rejected, which is the indication of cultural conflict. The emergence of the absolute Pi-pa music is due to the identity and combination with elegant culture.

琵琶初入中土，受到的拒斥是文化冲突的表现；其文曲出现的主要原因是与"雅文化"认同、融合的结果；琵琶文曲的艺术原理中表现出典型的传统美学的辨证法则。

is brought out in this thesis. Firstly, absolute velocity of galaxy moving in cosmic is 0.6 times of light velocity in vaccum; secondly, the sun kernel may has high speed of self-spinningabout thirdly, inner pressure of the sun is not so much, and its stability is the cause of its high speed of self-spinning.

并由此我们得到了以下的结论：1、银河系在宇宙中的绝对速度为真空中光速的0.6倍；2、太阳内核可能有高速的自旋 3、太阳的内压强不是很大的，它的稳定也是由于自身的高速自旋的原因。

To the Karnopp Control,the absolute velocity is difficult to measure;in the case of achieving the absolute velocity by testing accelerated velocities and c...

基于上述原因，本文提出加速度阻尼控制方法，即采用与车体加速度成正比的振动衰减力来抑制车体振动，并对加速度阻尼控制方法稳定性进行理论分析和仿真研究。

As growth rates are near the critical velocity of absolute stability limit by the calculation according to M-S theory, it must be considered that deep cells may keep their cellular structure.

当凝固速度近绝对稳定临界转变点时，KGT模型和Hunt-Lu数值模型与试验结果有较大的差别，其原因是这些模型的计算均未考虑到深胞晶在速度高于MS理论计算的绝对稳定平界面极限后仍能保持自身稳定性而造成的； 8。

The relationship between absorptance and thickness of ultra-thin titanium film in visible, IR region were investigated, results showed that the absorptance of the metal films had size effect.

研究了超薄Ti膜吸收率和直流电导率与薄膜厚度的关系，结果表明，超薄Ti膜的吸收率具有尺寸效应，并具有极大值，其结构特征变化是导致吸收率尺寸效应的重要原因

Results The appearance of negative value was due to insufficient reagent purity, finding out in original absorption curve. The reagent contained chemicals besides response theory.

结果 从原始吸光度值的曲线上找到出现负值的原因是试剂纯度不够，试剂中含量有反应原理以外的化学物质。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了