短語(yǔ)詞組短語(yǔ)emergency condenser vent 應(yīng)急凝汽器出氣口Emergency Vent Manhole Corer 緊急放空人孔emergency stop valve vent 應(yīng)急用排氣孔emergency vent valve detail 緊急放風(fēng)閥emergency vent valve 緊急放風(fēng)閥emergency vent handle 應(yīng)急解除密封手柄locomotive emergency vent valve 機(jī)車緊急放風(fēng)閥emergency stop valve vent valve 緊急放風(fēng)閥 返回 emergency vent