So far, there is no simple and easy formula to calculate time of filling gas into the vacuumcontainer.
真空容器充气时间的计算 ，至今尚无简易方便的计算公式。
2
The invention discloses a device and a method for measuring a volume ratio of a vacuumcontainer by a linear vacuometer, and belongs to the technical field of measurement.
本发明的一种用线性真空计测量真空容器容积比的装置及方法，属于测量技术领域。
3
An insulated container used especially to store liquefied gases, having a double wall with a vacuum between the walls and silvered surfaces facing the vacuum.