“emergency return”的概念、定义、翻译、参考文献-科学参考

单词	emergency return
释义	emergency return Encyclopedia 工学﹝进入、下降与着陆﹞释 emergency return应急返回载人飞船或空间站在轨运行时，因故障或航天员健康原因，航天员提前返回到设定的应急着陆区的行动。
随便看	Perelman Perelman,Grigori Yakovlevich perennial allergic rhinitis perennial cultivated grassland perennial forage plants perennial grass perennialism education perennial plant perennial ryegrass perennials perennial stream perennial weed Perepelkin crater Peres-Horodecki criterion perester Perestroika: New Thinking for Our Country and the World peret Peretz Smolenskin Perevoshchikov Perey Quoboza perfect perfect adaptation perfect additive functional perfect bicompactification perfect bigraph

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。