... An Active antimissile ststem （主动防导弹系统） An engine booster （增压发动机） Vessel repair system （船只修理系统） ...
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NASA crews will tackle an anomaly in the motion of a booster steering engine by removing and replacing a suspect component on Friday, the agency said on its Web site.
在助推器议案中，NASA人员将通过移除和替换可疑部件处理周五的异常，该机构在其网站上表示。
The one-level turbine engine with one pump is composed of a turbine, a turbine shaft, a booster pump wheel and an expansion chamber shell.
一泵一级涡轮发动机由涡轮、涡轮轴、增压泵轮和膨胀室壳体组成。
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