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The mass spectrometer may be used in a trace gas leak detector.
可以在示踪气体泄漏检测器中使用所述质谱仪。
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A colorless gas that is present in the air in trace amounts.
空气中存在的无色微量气体。
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A colorless gas that is present in the air in trace amounts.
空气中存在的无色微量气体。
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