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关注：1
2013-05-23 12:21
求翻译：Ambient or backpressure Pb fluctuations of different frequencies (f 0.5, 1.0, 1.5, 2.0, and 3 Hz) were artificially introduced in the high-altitude simulation chamber (HASC) using a combination of three magnetic valves.是什么意思？ 待解决
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- 离问题结束还有
Ambient or backpressure Pb fluctuations of different frequencies (f 0.5, 1.0, 1.5, 2.0, and 3 Hz) were artificially introduced in the high-altitude simulation chamber (HASC) using a combination of three magnetic valves.
问题补充： |
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