Besides the realization of moving function , the wriggling typed flexible mobile mechanism could also set up a flexible safety buffer layer between robot and intestinal tract by means of an air - in inflatable rubber bag , in order to avoid creating injury of scratch and stretch upon soft tissues inside human body 蠕动式柔性移动机构除了实现移动功能外，还可通过充气膨胀的像胶囊在机器人与肠道之间建立一个柔软的安全缓冲层，以避免在机器人运动过程中对人体内部软组织造成的擦伤和拉伤。
In the new structure , a n + buffer layer is introduced into the bulk silicon substrate with a triple - diffusion process . . the new structure has two features : one is the feature of npt - igbt : the thin and lightly - doped p + layer and the high lifetimes of the carriers ; the other is the feature of pt - igbt : n7n + structure which can make the n " region very thin 新结构用三重扩散的方法在n ~ -单晶片上引入了n ~ +缓冲层，仍然保留了npt - igbt中薄而轻掺杂p层和高载流子寿命的本质优点，同时又具有pt - igbt中n ~ - ( n ~ + )双层复合的薄耐压层(即薄基区)的优点。
By the essential control of the initial stage of - material growth , the high - quality crystal films can be obtained . by using mocvd technology , studies of some kinds of methods such as hydrogen - terminated , nitridation , plasma - assisted , growth of two stages and sputtering buffer layers have been conducted . by measuring of xrd , pl , sem and tem , and analysis of spectra of xrd , raman scatting , oa , and pl at different temperatures , we observed that the crystal quality has been improved markedly 本文利用mocvd技术，采用各种对si衬底处理的方法，如氢终止法、氮化法、等离子体轰击方法、两步生长法、溅射缓冲层法等进行了试验与研究，通过x射线衍射技术( xrd ) 、光致发光技术( pl ) 、扫描电子显微术( sem ) 、透射电子显微术( tem )等检测，并对其x射线衍射光谱、拉谱光谱、吸收光谱及不同温度下的光致发光光谱分析，发现外延晶体的生长质量得到了明显提高。
The device is a synthetical applicating example of phase modulator , intensity modulator and directional coupler theory . the characters and fabricating process of linbo _ 3 optical waveguide , electrodes design principle , the influence of sio _ 2 dielectric buffer layer on the performance of the device and design principle of tapped power ( ratio ) are analyzed 该器件是相位调制、强度调制和定向耦合器理论综合应用的典型,文章从理论上分析了linbo _ 3光波导的特点、制作工艺、电极设计原理、 sio _ 2介质缓冲层对器件性能的影响和抽头功率的设计原理等。
