发现对垂直入射的高功率的电子回旋波，在进入线性模转换层以前，参量不稳定性可以发生。
It is found that for the high power nearly perpendicular incident, electron cyclotron wave parametric processes may occur before it encounters the linear mode-conversion-layer.
论证和分析了该系统电磁不稳定性的存在及其特征，并与其它电子回旋脉塞进行了比较。
The electromagnetic instability of the system was analyzed, and compared with other electron cyclotron masers.
最后对回旋波色散关系进行了数值计算，得到了不稳定性判据和引起不稳定性的最佳值。
Finally, the numerical results are given for the dispersion relation of cyclotron waves, the criterion for this instability and the optimum value for generating it has been obtained.
该诊断基于电子回旋脉塞不稳定性和回旋共振吸收。
The diagnosis is based on the theories of the electron cyclotron maser instability and cyclotron resonance absorption.
绝对不稳定性是制约回旋行波管性能的主要因素之一。
Absolute instability is a major physics limitation in the realization of the ultimate capability of gyro-traveling-wave tube.
绝对不稳定性是制约回旋行波管性能的主要因素之一。
Absolute instability is a major physics limitation in the realization of the ultimate capability of gyro-traveling-wave tube.
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