If we test the two side doors for the last 2 1 machine, I think this problem has occurred due to the operation of each worker / different stages. So the heat will escape ventilated place. Synonym: in the course of work, 1 in 2 sides open, the heat will be concentrated there and will exit the current status hotter earlier (before improvements)
đang được dịch, vui lòng đợi..