The effect of the atmosphere on the structure and properties of ion nitriding layer of alloy TC4 was investigated.

研究了在不同气氛下进行离子渗氮对TC 4钛合金渗氮层的组织与性能的影响。

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Both the samples are all a mixed conductor of oxide-ion and electron hole with an almost same oxide-ionic transport number under oxygen atmosphere.

这两个样品在氧气氛中均是氧离子与电子空穴的混合导体，具有几乎相同的氧离子迁移数。

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The incorporated negative ion generator provides green shower effect facilitating metabolism stabilizing nerve system and changing the atmosphere.

负离子发生器的注册提供绿色淋浴的效果，促进新陈代谢，稳定神经系统，改变气氛。

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This flies so low to make its maps that it must continually fire its ion engine to counteract the wisps of atmosphere still present at an altitude of 260km.

BBC: Satellites have an electric future