In the Wasteland at the Beginning, the Country Asked Me to Resell Star Destroyers

[Double door + leak detection + black technology + resource exchange + interstellar overlord] "Report! The opposite side is a high-tech wasteland, full of scrapped mechas and battleships!" "Where is this wasteland? This is clearly a treasure house belonging to Daxia! The whole army goes out to pick up the garbage!" Jiang Chen obtained a double portal, facing the interstellar wasteland after the destruction of civilization. A bottle of mineral water here can be exchanged for a photolithography machine; a ton of compressed biscuits can be exchanged for a frigate! The state machinery was operating at top speed, and the Grain Bureau and Light Industry Bureau were fully engaged in production to support Jiang Chen in "collecting rags." Technology that was originally stuck in Blue Star can be easily picked up here. "Chip technology? How many tons are there in the garbage dump over there?" "Controllable nuclear fusion? That's the core of people's heating stoves." While Yingjiang was still showing off his sixth-generation aircraft, Daxia's Sky Fortress had already taken off. Jiang Chen: "What we want to do is not to catch up, but to reduce the dimensionality! Chief, can this Star Destroyer be replaced with two acres of land to grow vegetables?"