Vacua

(pl. ) of Vacuum

伊夫林整理

• We had already managed to get pretty high vacua, and we thought, maybe, the filament would be stable. 鲁伯特·萨金特·荷兰. 历史性发明.
• Finally, I thought I would try it because we had got very high vacua and good conditions for it. 鲁伯特·萨金特·荷兰. 历史性发明.
• The study of apparatus for obtaining more perfect vacua was unceasingly carried on, for Edison realized that in this there lay a potent factor of ultimate success. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.

伊夫林整理