Dewing is harmful to the safety of in-orbit astronauts and the performance of manned spacecraft. The causes of dewing and several effective preventing or suppressing methods against dewing are discussed. Those methods can serve as a reference in the thermal system design for similar manned spacecraft projects.%密封舱内结露威胁在轨航天员的安全和载人航天器的性能.文章探讨了载人航天器密封舱结露的产生原因,以及防止和减小结露的设计方法,可供类似的载人航天项目进行热控设计时参考.
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