S čim se pa kitajčki igrajo?

napačna tema.

vojska ali rudarstvo

Wikimapia pravi, da gre za testne tarče

To je QR koda za vesoljce, da poskenirajo našo Zemljo, ko grejo mimo.

Former military guy here. These are used for fighter pilots to practice bombing missions. You can see the impact craters all over the place - some in concentrated areas. The lines were painted using crop-dusting type attachments on helicopters. The wider lines are actually two "passes" wide (you can see where some are only half finished).

Flying low altitude keeps the lines relativly uniform despite rough terrain. In some of the lines you can see the streaks left from the individual nozzles of the sprayers. Gullies and other low lying areas get washed clean

There's nothing mysterious about any of these at all - very typical for military training exercises.

Ejga, a mate zamik 3 let vi vesoljci?

Chinese here, its a space based weapon target range, the original news was published by the state-ran media back in 2008, part of Project 640.