三级片视频播放,精品三级片在线观看,A级性爱视频,欧美+日韩+国产+无码+小说,亲子伦XX XX熟女,秋霞最新午夜伦伦A片黑狐,韩国理伦片漂亮的保拇,一边吃奶一边做边爱完整版,欧美放荡性护士videos

These heated capacitance manometers are identical to the Types 627B and 628B Baratrons described above except that they add two （2） internally-mounted, independently-adjusted electromechanical relays that can be set to open or close at any pressure from 0.1%to * of the product's full-scale measurement range. These relays can be used to control external equipment, such as isolation valves, other high vacuum gauges （such as hot-filament ionization gauges）, drive motors, etc. They are available in full-scale measurement ranges from 10 to 1000 Torr （13 to 1333mbar）.