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However, operating of the high current, the output power, gain, and efficiency of gyro-TWT will be degraded where the absolute instability, gyrotron backward oscillation and reflective oscillation occur to cause mode competition. Stability issues comprise the key factors limiting the performance of the gyro-TWT.

对於高电流的影响，磁旋行波放大器将有可能引发绝对不稳定、磁旋返波振荡(gyrotron backward oscillation；gyro-BWO)及反射振荡，造成模式竞争而抑制原先操作模式的放大波，进而影响其输出功率、增益及效率。

This paper, with the analysis of the propagation characteristics in a lossy cylindrical waveguide and using small-signal theoretical dispersion relation, presents study on the device stability with influence of the absolute instability and the backward wave oscillation in TE01-mode lossy dielectric-load gyrotron traveling wave amplifier.

摘要该文从分析损耗介质加载金属圆波导中电磁波传输特性出发，应用回旋行波管放大器小信号色散方程，研究损耗介质加载结构TE01模回旋行波管放大器绝对不稳定性振荡和回旋返波振荡对器件稳定性的影响。

However, operating of the high current, the output power, gain, and efficiency of gyro-TWT will be degraded where the absolute instability, gyrotron backward oscillation and reflective oscillation occur to cause mode competition. Stability issues comprise the key factors limiting the performance of the gyro-TWT, therefore physical origins of spontaneous oscillations in the gyro-TWT are analyzed and characterized.

然而受限於操作高电流，磁旋行波放大器可能引发绝对不稳定性、磁旋返波振荡(gyrotron backward oscillation；gyro-BWO)及反射振荡，造成模式竞争而抑制原先操作模式的放大波，进而影响其输出功率、增益及效率。

Basing on analyzing a few pictures, this article tries to backward the history of the spring and the shaping of this motif, to study the intercommunion between patterns, to discuss the relationship between the symbolization and the formation, and between the symbolization and the headspring, to expatiate its importance in the aesthetic way, and to draw the conclusions 1, consistent in forms, acanthus scroll origins from the lotus ornament.

本文试图围绕莨苕叶饰漩涡纹样这一重要的装饰母题，依据图例，追溯这一纹样的起源和成形，考察成形中图案在时间和空间上形成交流的原因和意义，讨论象征意义和起源之间的关系以及象征意义与形式之间的关系，以及阐述这一纹样的成形与演变在审美上的意义，来展开对图案的本体问题的讨论。

A character is like an acrostic or Alexandrian stanza---read it forward,backward, or cross, it still spells the same thing.

个性就像一首离合诗或亚历山大诗节，无论是顺读，逆读，还是挑着读，拼起来后得到的是相同的东西。

A character is like an acrostic or Alexandrian stanza---read it forward, backward, or cross, it still spells the same thing.

个性就像一首离合诗或亚历山大诗节，无论是顺读，逆读，还是跳着读，拼起来后得到的都是相同的东西。

A character is like an acrostic or Alexandrian stanza;- read it forward, backward, or across, it still spells the same thing.

一个人的性格就像一节离合体或亚历山大体诗歌--把它顺着读，倒着读，或斜着读，拼出的字都是一样。

A character is like an acrostic or Alexandrian stanza--read it forward, backward, or across, it still spells the same thing.

人的本性就像首离合诗，无论顺读，倒读，还是跳读，依旧不会改变它原来的样貌。

The left arm continues to propel backward and under the body with the hand/forearm surface although adduction is complete.

左臂继续利用身体下方的手掌和前臂形成的划水面向后推进，但上臂内收已经完成。

Aegeus hastily embraced his wife and son, and without a backward glance he departed to his ship.

埃勾斯匆匆地拥抱了妻子和儿子，然后头也不回地向船走去。

As of Tuesday, Google's results were still censored in China.

截至周二，谷歌的搜索结果仍受中国审查。

In order to make the positive action increase and negative one decrease, the sub-forces of the social factors must be adjusted to form a centripetal force.

在这一过程中，人的主体性发挥是社会有机体健康发展的灵魂。