传输损耗

On the basis of the theory of Gaussian light beams transmission and applying principles of matrix optics and theory of Gaussian light coupling, a theoretical equation for calculating the return loss of fiber collimator with beveled end face and GRIN lens is derived.

在高斯光束传输理论的基础上，利用矩阵光学的原理和高斯光束耦合理论得出了斜面耦合自聚焦透镜型光纤准直器的回波损耗的数学表达式。

The model of photon-induced refractive index change based on GaAs materials is presented briefly, then the model based on GaAs/AIGaAs quantum wells materials is deeply analyzed by treating the effects of photon-excited carriers self-consistently. Furthermore, the propagation characteristics of multi-quantum well waveguide is invested, and the low-loss multi-quantum well rib waveguide deeply etched is also designed by using the spectral index method.

在简要分析了基于GaAs材料的光致折射率模型的基础上，通过自洽的方法，重点研究了基于GaAs/AlGaAs多量子阱材料的光致折射率模型；其次分析了量子阱波导传输特性，利用谱折射率法设计低损耗的深刻蚀脊形量子阱波导。

Furthermore, it can be seen that electrodes placed in the occipital lobe are blocking the blood flow behind their delimitation where the oxygen depletion is caused and this is seen as well in his frontal brain just above the implanted transmitter.

此外，电极也看到是放置在枕骨的圆形突出部位，以阻止血液流向他们后面的定界，在那，氧气损耗产生了，在他的前脑上面，刚好就是植入传输器的部位。

Furthermore, it can be seen that electrodes placed in the occipital lobe are blocking the blood flow behind their delimitation where the oxygen depletion is caused and this is seen as well in his frontal brain just above the implanted transmitter.

此外，电极也看到是放置在枕骨的圆形突出部位，以阻止血液流向它们后面的分界，在那，氧气损耗产生了，在他的前脑上面，刚好就是植入传输器的部位，也是如此。

The cut-off wavelength of the fiber is about 1270nm. The dispersion of the fiber is about -25ps/nm~*km at 1550nm. The MFD the fiber is about 7.12μm at 1550nm. These optic properties are suitable for EDFA application.

设计数据表明上述碲酸盐玻璃很好地满足了作为EDFA光纤的要求，对熔接损耗、色散和传输条件等要素基本上达到了最优化。

When light transmitting through two interfaces of wave-guide, the luminous energy of coupling losses great for the condition of Snell Law, which restricts the wide application of coupling more optical elements. It has obstructed the development of the integrated optics.

光线透过两波导界面传输时，由于受到Snell定律的制约，光能的损耗很大，导致三个元件以上的集成光路不能走向应用，阻碍了大规模集成光路的发展。

When light transmitting through two interfaces of wave-guide, the luminous energy of coupling losses great for the condition of Snell Law, which restricts the wide application of coupling more optical elements. It has obstructed the development of the integrated optics.

但是由于光线在透过两波导界面传输时，受到Snell定律的制约，光能耦合损耗很大，导致三个元件以上的集成光路不能走向应用，阻碍了大规模集成光路的发展。

A transmission parameter such as number of retransmissions may be evaluated against a predetermined threshold to identify lossy links.

对一个预定门限值可以评价诸如重发数量的传输参数从而识别有损耗链路。

The propulsion force is generated by caudal fin in Thunniform swimmers, and the tendons are the force transmitting elements form the muscles to the caudal fin. As elastic elements, the tendons can save metabolism cost during swimming.

鲹科加新月形尾鳍推进模式的推进力主要由尾鳍产生，肌腱作为连接尾鳍与产生驱动力的肌肉的力传输元件，具有存储弹性应变能的生物弹簧的作用，对降低游动的能量损耗，提高推进效率具有重要作用。

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