Both solenoid valves are closed in the pressure hold cyclFluid apply pressure in the control channel is maintained at a constant ratThe CAB maintains the hold cycle until sensor inputs indicate a pressure change is necessary.是什么意思_Both solenoid valves are closed in the pressure hold cyclFluid apply pressure in the control channel is maintained at a constant ratThe CAB maintains the hold cycle until sensor inputs indicate a pressure change is necessary.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句