氮气

The wetting property of PET fiber was ameliorated obviously by the azote plasma treatment.

用氮气对涤纶进行低子处理,明显地改善了其表面的润湿性能。

Preoxygenation replaces the primarily nitrogenous mixture of ambient air, which constitutes the patient's functional residual capacity, with oxygen.

这样可以用氧气取代之前被氮气占据的肺泡。

Its dry powder nitron sprying fire systemcarbon dioxide spraying fire system could be used on singelcombinetion.

干粉氮气系和二氧碳系既可又可单独使用，联合使用，实战能力很强。

After the precursor's thermal decomposition under the protection of nitrogen,a kind of nonstoichiometric titanium oxide can be prepared.

用钛粉和草酸反应制得前驱物,在氮气保护下600℃热分解前驱物制备了一种计量钛氧物。