pro·pul·sion /prəˈpʌlʃən/ noun [uncountableU] technical TEMTTthe force that drives a vehicle forward 〔车辆等的〕推进力 → propelrocket/wind/nuclear/jet propulsion 火箭/风/核能/喷气推进力
research into liquid hydrogen as a means of propulsion 对液态氢作为一种动力方式进行的研究
—propulsive /-sɪv/ adjectiveadj