In the process of mining, it is very important for mining safety to monitor gas concentration.

在煤炭开采过程中, 井下瓦斯浓度的测量对煤矿安全生产非常重要.

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The elevated Gas concentration in patients with EGP could be correlated with Hp infection.

结论　Hp是EGP的 重要致病因素之一,EGP患者 Gas浓度升高与Hp感染 有一定关系.

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