What’s going on with the surprising slogan discovered by Google Maps

Really, these are the miracles created by the former officers and soldiers of the Eighth Aviation School on the Gobi Desert. These "quotation" landmarks surrounding the airport can help pilots maintain their airspace position and guide instructors and students to accurately enter and exit the airspace. Landmarks The center point of the area is Willow Springs Airport. There is also an abandoned runway in one corner. Because Liushuquan Airport is located in the Gobi Desert, there are no obvious features nearby! The planes are all beginner-level aircraft with simple equipment and rudimentary navigation equipment, so I created quotation landmarks.