In this way , supersonic fluid amplifier especially bistable valve with negative pressure switch is used in the rocket projectile thanks to its advantages of switching rapidly , the ability of low temperature air to control the high temperature gas and no moving parts in high temperature gas 超音速射流双稳阀,特别是采用负压切换的超音速射流双稳阀因其具有切换快速、可用低温气流控制高温燃气和在高温燃气中无活动部件的优点而适用于火箭弹的姿态控制系统中。