The results show that the influence factors from main to secondary are spraying distance, plasma current, flowing rate of delivering powdergas and plasma voltage.
结果表明，影响涂层性能的因素从主到次依次为喷涂距离、电流、送粉气流量和电压。
2
The powdergas, generated continuously due to burning of propellant forms air-cushion among propellant grains, which can buffer and protect propellant grains from bumping, impacting and extruding.
发射药燃烧时不断产生的燃气在药粒之间形成气垫，对药粒的撞击、挤压起到缓冲保护作用。
3
The powder could also provide a safer, more convenient way to store methane fuel for use in vehicles powered by natural gas.