为了探究宇宙起源与演化过程，大口径巡天望远镜将突破已有的探测深度和广度，帮助人类解决更多科学前沿领域问题。大口径校正镜组不同......

The author surveys a few examples of boundary layers for which the Prandtl boundary layer theory can be rigorously valid......

A parallel diagonally-iterated Runge-Kutta (PDIRK) method is constructed to solve stiff initial value problems for delay......