The single-point compression principle. based on the collision of pulsed supermulti-jets. which is proposed in our previous reports. has the potential of obtaining both a high compression ratio and relatively low combustion noise. https://www.ealisboa.com/quick-save-Pentair-Female-to-Female-Hose-Adapter-4-For-Sectional-Hose-K21241B-top-mega/