If oxygen-deficient atmospheres are suspected or can occur, use oxygen monitoring equipment to test for oxygen-deficient atmospheres. Review the liquid nitrogen Material Safety Data Sheet (MSDS).
如果怀疑空气中缺氧或缺氧可能发生，使用氧检测设备来测试缺氧空气。可以参考合适的材料安全数据表(MSDS)。
The half deficient liquid centrifugal pump in a decarbonizing system suffered from serious corrosion and did not work normally after operating only for about one year.
脱碳系统中的半贫液离心泵投用一年多后，由于受腐蚀严重，不能正常工作。
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