常见例句双语例句Aim: To study the effect of Sevoflurane inhalation anesthesia with closed circuit and low flow on 133 cases of thoracic tumor.目的：报告低流量七氟醚循环紧闭式吸入麻醉用于胸部肿瘤手术133例，临床观察效果满意。 返回 closed inhalation anesthesia