自发反射

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。

In the case of the jewel beetle's external skeleton, its five, six and seven sided cells spontaneously arrange themselves to reflect light at certain wavelengths that produce green, yellow and red colors.

而对于综合吉丁虫的外骨骼来说，其上的五、六、七边形细胞会自发地排列以使得它们能反射特定波长的光，进而产生绿、黄、红色的光。

But internal reflections an the boundaries of active medium can drastically enhance the onset of ASE, particularly if these reflections lead to a close path, i.e., a ray that is reflected upon itself. In the case, we have a strong feedback mechanism and as soon as the gain in the laser medium exceeds the reflection losses parasitic oscillations will set in.

但自发辐射的存在使得放大器工作介质会在信号光到达前开始发射激光，并且工作介质边缘的内反射能显著增大ASE的发射，尤其当这些反射能导致产生封闭路径时更是这样，当激光介质内的增益超过损耗时，就建立起寄生振荡。

METHODS: A dose-response relationship of 8-OH-DPAT, spontaneousphrenic nerve activity and a nociceptive C-fiber reflexwere established simultaneously in an in situ perfused, nonanesthetized,rat brainstem-spinal cord preparation. Fentanyl was administered in situ to investigate the interaction with 8-OH-DPAT on phrenicnerve activity and nociceptive CFR.

在准备好的原位灌注，未麻醉的大鼠脑干-脊髓上同时建立8-OH-DPAT 的量效关系，自发膈神经活动和疼痛 C -纤维反射原位给予芬太尼观察其与8-OH-DPAT 对膈神经活动和疼痛 C -纤维反射的相互影响。

Finally, local effects of CPZ were confirmed in the formalin test and it was shown that the formalin-induced paw flinches were strongly suppressed by CPZ in phase 1 but with phase 2 being significantly suppressed only during 25-55 min.

利用行为学技术方法证明足底注射CPZ可以明显抑制福尔马林溶液所致的第一相全程和第二相内仅第25~55 min的自发缩足反射。

If these abnormities were laid according as frequency among 2-6 months,reflex abnormities are knee tendon reflex, palmar grasp reflex,...

其中 2— 6个月组，4个方面的异常项目按出现多少分别排列为：①反射异常：膝反射、手持握反射、巴氏征、非对称性颈肢反射、踝阵挛、坐位平衡反应、踏步反射、交叉伸展反射、紧张性迷路反射、躯干侧弯反射、拥抱反射；②姿势异常：仰卧翻成侧卧头后仰≥ 15°、立位悬垂、平卧颈后空隙≥1cm、俯卧悬垂、侧位悬垂、拉起、紧张性头偏斜、自发姿势异常；③肌张力异常：足背屈角、上肢围颈、手握拳、扶立足跟抬起≥ 3 0°、拇指交叉达掌心、窝角、内收角、跟耳角；④其他异常：头围≤ x -2s、斜视、主动运动减少/异常、听觉异常、视觉异常、眼颤、癫痫。

It also found that, whether decreasing spontaneous emission factor or increasing bias current and optical confinement factor can raise reflection and reduce transmission, but the transmission reducing in latter is more slowly and flatly, this can improve the modulation response.

同时发现，减小自发辐射因子或增大驱动电流和限制因子，反射增大传输减小，但后者的传输参量减小缓慢平坦，对调制响应有所改善。

The model considers as many factors as possible, including nonuniform distribution of photon intensity and carrier density along active region, gain spectral dispersion, spontaneous emission spectrum and facet reflectivity, and is applicable under the condition that the pulse width of injecting signal is wider than 10 picoseconds. It provides a convenient and effective theoretical platform for SOA dynamic characteristic study.

该模型考虑光子密度和载流子浓度沿有源区的非均匀分布、增益谱色散性、自发辐射噪声谱和端面反射率，适用于脉冲宽度高于10ps的信号输入的情况，为后续研究SOA动态特性提供了方便而有效的理论验证平台。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失