getter-ion pump造句

• Getter-ion pumps decrease chamber pressure by chemical reaction of residual gases with an evaporated metal .
  吸气离子泵通过剩余气体与蒸发的金属之间的化学反应减少了内腔的压力。
• Recent electronic means of pumping using low temperature sorption techniques and getter-ion pumps have been introduced .
  现在已经采用了低温吸附技术和吸气离子泵的近代电子抽气设备。