The new physical concept "molecule vacuum life" is presented, on which the method of measuring the thermal adaptation coefficient of gas molecule is deduced.
提出了“分子真空寿命”这一新的物理量，并以此概念推导出测量气体分子热适应系数的方法。
2
A method for determining the thermal performance of vacuum collector tubes with heat pipes is studied in this paper.
本文讨论了热管式真空集热管的热性能测定方法。
3
The article briefly introduces a calculating method of vacuum heat treatment thermal hysteresis time, to accurately and reasonablely decide vacuum heat treatment heating and holding time.