... 减压染色、vacuum dyeing 真空比冲、vacuum specific impulse 真空沉积、vacuum deposition ...
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Through analyzing the effect of polluted air on relative deviation of vacuum specific impulse, the results show that polluted air has small effect on motor performance.
从污染空气对真空比冲相对偏差的影响分析，污染空气对发动机性能的影响很小。
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