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1993 nian zong mu ci
Pages: 231-232
Year: Issue:  4
Journal: Vacuum and Cryogenics

Keyword:  光学太阳反射镜四极质谱计真空技术液环真空泵航天器氦制冷总目次空间技术高温超导薄膜应用;
Abstract: <正> ~~
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