A technological dimension reduction combat military novel. Rejecting the black technology of levitation and using the real Sino-German technical cooperation as the background, the protagonist's golden finger is not a creation out of thin air, but a deep understanding of the underlying design logic of allied or enemy equipment, and the use of limited materials and processing conditions at the rear to miraculously recreate targeted weapons that "hit the weak points". The cool part is: using backward machine tools to process "miracle equipment" that is an era ahead of its time.
