The oil vapor contamination in the old vacuum furnace was inherited from its oil diffusion pump, and the inaccuracy temperature control of the furnace chamber was resulted from the manual temperature adjust-ment. These problems have severely restricted the development of vacuum technology in our laboratories.
老式真空炉由于采用了油扩散泵和手动控温方式,存在真空系统被油污染和控温精度差的问题,严重影响了真空工艺质量。
the diffusion of components in the zone is restricted during the course of the determination by the liquid flux into the zone.
测定过程中,通过流入区域的液流来严格控制区域内组分的扩散。
英语网 · 双语娱乐资讯
英语网 · 中考英语
英语网 · 双语新闻
英语网 · 初中英语作文