pressurelessadj.无压的pressuren.压强；压力；压迫v.施压pressure-pad-force压边力pressure-relief test释压试验pressure precipitation压力沉淀pressure on expiration呼气压Pressure build up test压力恢复试井pressure on employment就业压力pressure-head switch压力保护开关,触点式压力计pressure-drop method压降法Pressure of Expiration呼气压Pressures Infiltration无压浸渗