国外在防霜方法上实现了机械化,自动化,大大节省了人力、物力。日本试制了烟雾发射机,喷射的烟是水和油的一种气溶胶。美国、英国、法国,对果园、葡萄用送风防霜法,在10米高的塔上安装转盘,可以使直径3～5米的螺旋浆转动,动力机的功率约为80～100马力,形成风力相当于4～6米/秒,使上下层空气充分混合达到防霜目的。苏联制成了发烟器,发烟器的组 Foreign frost-proof methods to achieve the mechanization, automation, greatly saving manpower and material resources. Japan trial smoke transmitter, jet smoke is an aerosol of water and oil. The United States, Britain, France, on the orchard, grapes with wind defrosting method, the installation of the turntable in the 10-meter-high tower, you can make the diameter of 3 to 5 meters of propeller rotation, the power of the power machine is about 80 ~ 100 horsepower to form Wind equivalent to 4 ~ 6 m / s, the upper and lower air to fully mix the purpose of frost protection. The Soviet Union made a group of smoke generators and smoke generators