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p1 So p2 is less than p1, the external pressures is less than the internal pressure.
抱歉，应该是p2小于,外界压强小于内部压强。
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- 来自原声例句
p1 So p2 is less than p1, the external pressures is less than the internal pressure.
抱歉，应该是p2小于,外界压强小于内部压强。
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