摘 要： 微课已经越来越广泛地应用于各类教学活动中，它以短小精悍为亮点被老师和同学喜爱，教师将某一个知识点或教学环节录制成视频供......

Nettles, published in 2001 by Alice Munroe, is very popular for its narrative style. With space-time transformation, esp......

A numerical investigation of the different arrangements of porous media in a combustor with annular heat recirculation i......