真空感应炉真空机组中的前级泵，历来使用滑阀泵。
Rotary piston pumps always used as backing pumps of vacuum systems in vacuum induction ovens.
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.
真空蒸馏是除去海绵钛中杂质的关键过程，合理选择真空机组对提高海绵钛的质量至关重要。
Vacuum distillation is the key process to remove foreign materials from titanium sponge. Rational choosing of assembling vacuum unit is of vital importance to improving the quality of titanium sponge.
应用推荐