真空系统采用复合真空计及真空机组，测量范围宽、设备紧凑、密封性能好。
The vacuum system USES a compact vacuum pump group and compound gauges with wide measuring range and good hermetization.
真空系统采用复合真空计及真空机组，测量范围宽、设备紧凑、密封性能好。
The vacuum system USES a compact vacuum pump group and compound gauges with wide measuring range and good hermetization.
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