真空安全开启压力
vacuum relief cracking pressure
铲刀控制阀安全阀
blade control valve relief valve
充油安全阀阀芯
charge relief valve poppet
电磁阀安全阀
solenoid valve relief valve
辅助阀安全阀调定
auxiliary valve relief valve setting
提升器电磁阀安全阀
lift solenoid valve relief valve
压力控制顺序阀安全阀
priority valve relief valve
转向阀安全阀
steering valve relief valve
转向控制阀安全阀
steering control valve relief valve
低真空空气测微仪
low vacuum air micrometer
动态真空安定性试验DVST
dynamic vacuum stability test DVST
滑阀真空泵
sliding vacuum valve
rotary piston vacuum pump
slide-valve vacuum pump
rotary plunger vacuum pump