Effect of radiotherapy on perioperative changes of arterial blood-gas analysis and its relation to postoperative cardiopulmonary complication in cases of esophageal carcinoma是什么意思_Effect of radiotherapy on perioperative changes of arterial blood-gas analysis and its relation to postoperative cardiopulmonary complication in cases of esophageal carcinoma在线翻译_英语_读音_用法_例句