Abstract: An antifreezing ventilation system at winter in a gold mine is designed by use of the earth temperature preheating technology.
Abstract: An antifreezing ventilation system at winter in a gold mine is designed by use of the earth temperature preheating technology.
文摘:利用地温预热入风流技术，设计了金厂沟梁金矿冬季防冻通风系统。