Định lý muôn thuở: Bitcoin tăng, máy đào hoạt động trở lại, kéo theo thị trường mua bán thiết bị sôi động

YAN'AN, CHINA - AUGUST 23: Image shows the house in which the bitcoin mining machines used power illegally on August 23, 2017 in Yan'an, Shaanxi Province of China. Over 1,600 bitcoin mining machines were seized by police on August 23, since these machines illegally used the electricity of inter-mountain oil fields in Yan'an. (Photo by Zhang Jianquan/Huashang Daily/VCG)