单词	壕堑工事
释义	壕堑工事 entrenchment works
随便看	vacuum controller secondary barrel vacuum controller valve position Vacuum Controlling system vacuum control modulator valve vacuum control panel vacuum control piston vacuum control solenoid vacuum control solenoid valve vacuum control system vacuum-control system Vacuum control system for HLS vacuum control unit vacuum control valve Vacuum control valve vacuum converter vacuum conveyer vacuum conveyer tube vacuum conveying vacuum conveyor vacuum conveyor tube vacuum cooker vacuum cooking Vacuum cooled vacuum cooler vacuum cooling