When liquid propellants are used the fuel and oxidize are fed under pressure to one or more combustion chambers and expanded to atmosphere through convergent-divergent nozzles . 当使用液体推进剂时,在压力作用下,燃料和氧化剂输送到一个或几个燃烧室中,并通过收敛-打散喷管,排到大气中。
Valves for gas installations ; nozzles with gasket 煤气装置用阀门.带密封垫的喷嘴
Hose fittings ; tapered nozzle with clamping nut 软管连接件.带压紧螺母的锥形管嘴