noun [专属名词]推进物；推进燃料；发射火药
This saves valuable chemical propellant and extends mission lifetime. 这样既可以节省珍贵的化学燃料，又可以延长航天器的寿命。
adjective [原级]推进的
Without those propellant burns, the station would eventually drop from orbit. 没有这些推进器的点燃，空间站最终会从轨道降落。
单词造句:
This saves valuable chemical propellant and extends mission lifetime. 这样既可以节省珍贵的化学燃料，又可以延长航天器的寿命。
Without those propellant burns, the station would eventually drop from orbit. 没有这些推进器的点燃，空间站最终会从轨道降落。