Mechanical Jade Mining: The Yulong Bridge area was a prehistoric ancient riverbed jade mining area, starting from the head of the Yulong Karash River canal and extending 60 kilometers to the south. The mining sites are distributed on the prehistoric ancient riverbeds of the east and west banks. Bosses with certain financial resources each occupy a section. They set up camp and use loaders to remove the loose soil. After digging out the pebbles, they search for jade among them. Generally, there are two geological and mineral bosses every 1-2 kilometers. Based on this calculation, in a 60-kilometer-long area, there should be around 120 mine owners. Further assuming that each owner has 10 hired workers, at least over a thousand people are involved in jade mining in this area. These bosses usually have 1-3 loaders (a few even have excavators), and the loaders' drivers earn more than a thousand yuan. Hired workers earn about 600 yuan, with food and accommodation provided. The mine owners and hired workers are mostly...
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