较轻的推进器采用液态氢, 较重的采用自燃推进剂.The lighter version used liquid hydrogen, the heavier used hypergolic propellants.这个工厂为弹道导弹生产推进剂。The factory produces propellant for ballistic missiles.挤压 式 发动机对推进剂中溶解的气体特别敏感.Pressure - fed engine...
Both scans show smooth thickening of interlobular septa involving both lungs symmetrically.两层面均显示双肺小叶间隔平滑的增厚.A few nodules are visible in relation to interlobular septa.少数结节位于小叶间隔.In sarcoidosis, nodular interlobular sep...