The measurements of the fiber sample demonstrate its bandgap-guided properties, showing two obvious bandgap guided transmission bands.
传输谱和弯曲特性测试表明布拉格光纤样品具有两个明显的传输波段，体现了带隙导光的特征。
So, network information transmission should be controlled and guided from different layers such as administration, technology, and legislation, so that users can get maximum information freedom.
因此，应该从管理、技术、立法的层面对网络信息传播加以控制和引导，让用户享有最大限度的信息自由。
The simulation results show that the power transmission efficiency is over 98% in a large part of the frequency range of the guided mode of photonic crystal waveguide.
二维时域有限差分仿真结果表明，在大部分光子晶体波导导模的频谱范围内，传输效率高于98%。
PZT transducers have been used to excite and receive ultrasonic guided waves in steel pipes. The reflect and transmission rules of guided waves are researched.
采用PZT传感器在钢管中激励并接收超声导波，研究导波在管道中传播时的反射、透射现象。
The bidirectional optical fiber transmission system is an important part of the optical fiber guided missile. This paper introduces the features, structure and working principle of the syst...
光纤双向传输系统是光纤制导导弹系统中一个重要标志性的组成部分。
Methods 30 HIV infected pregnant women were consulted and guided on the measures of preventing mother-to-infant transmission of HIV by well-trained consultants.
方法由有经验的经培训的咨询员为30例确诊为HIV感染的孕妇进行咨询。
Methods 30 HIV infected pregnant women were consulted and guided on the measures of preventing mother-to-infant transmission of HIV by well-trained consultants.
方法由有经验的经培训的咨询员为30例确诊为HIV感染的孕妇进行咨询。
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