Hermetic performance should be assured and leaking phenomena should not appear, especially for flammable and explosive gas medium, as well as poisonous and deleterious mediums.
保证密封性，不应有泄漏现象出现，尤其是易燃易爆气体介质和有毒有害介质。
Yellow phosphorous tail gas contains large Numbers of co and some of deleterious impurities,. Co is the basic material of one carbon chemistry engineering.
黄磷尾气中含有大量的CO及一些有害杂质，其中CO是碳一化工的基本原料。
Pollution caused by discharge of motor tail - gas has become the biggest polluting source in cities. Improving the quality of fuel can effectively control the deleterious agent discharged by motors.
汽车尾气排放污染已居城市污染源之首，提高燃油质量可有效控制汽车有害物排放。
Inhalation of H2 gas at incombustible levels during ischemia and reperfusion reduces infarct size without altering hemodynamic parameters, thereby preventing deleterious left ventricular remodeling.
因此，在冠脉血运重建时，氢气吸入将成为一种减轻缺血再灌注损伤的非常有希望的措施。
Inhalation of H2 gas at incombustible levels during ischemia and reperfusion reduces infarct size without altering hemodynamic parameters, thereby preventing deleterious left ventricular remodeling.
因此，在冠脉血运重建时，氢气吸入将成为一种减轻缺血再灌注损伤的非常有希望的措施。
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