A high-vacuum pump; gas is removed by ionizing the atoms or molecules and adsorbing them on a metal surface. 一种真空泵;通过电离原子或分子移动气体并使他们附在金属上。
Then the suction - time of low-vacuum pump and high-vacuum pump is validated by experiment, and then the performance of regulating temperature and pressure for test-bed are tested, and the variation curves of pressure and temperature with time in the vacuum tank are obtained. 对高真空泵(HVP)、低真空泵的抽气时间进行了实验验证,并测试了试验台的温度与压力调节性能,得到了试验台内部的气压以及温度随时间变化的曲线。