Impurity doped during epitaxy will diffuse in the epitaxial layer and even into the substrate.在半导体器件制造的外延工艺中,外延生长时通常要掺入杂质.A high Er ~ ( 3 + ) - doped narrow linewidth fiber laser based on fiber Bragg grating ( FBG ) Fabr...
We've put down on our staff development plan for this year that we would like some technology courses...我们已经在今年的员工发展计划中写到我们希望有一些技术培训课程。Much of the plan runs counter to European agriculture and environmental policy.....
Multicolored reconstructions have been formed using ( black and white ) volume holographic plates.利用黑白体积全息片已经做成了彩色重建象.The method gives ways to evaluate collision speed in traffic accident reconstructions.该模型为交通事故再现推算碰撞速度...