A hot core heater would be very useful to avoid condensation of the constituents of air at the higher Mach Numbers.
利用一个核心加热器，可以有效地避免空气成分在较高马赫数时发生冷凝。
2
The utility model relates to a cross flow electric hotair curtain machine, which is an electric heater which is connected with an air inlet or an air outlet of a cross flow air curtain machine.
The electric hotair curtain machine can be divided into two types of semiconductor thermal sensitive ceramic heater and a fin electric heating tube heater according to different heating materials.