| 单词 | Torricellian vacuum |
| 释义 | Torricellian vacuum The vacuum formed when a long tube, closed at one end and filled with mercury, is inverted into a mercury reservoir so that the open end of the tube is below the surface of the mercury. The pressure inside the Torricellian vacuum is the vapour pressure of mercury, about 10-3 torr. It is named after Evangelista Torricelli who was responsible for the design of the mercury barometer |
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