lesser omentum短语¹⁴⁴⁹⁷²⁺² 基本英英例句 小网膜 Noun: a part of the peritoneum attached to the stomach and liver and supporting the hepatic vessels Objective:To determine the accuracy and clinical significance of lesser omentum sac abnormality observed by ultrasound in acute pancreatitis AP. 目的:了解急性胰腺炎 AP时超声观察网膜囊病变的准确性及其临床意义。 cnki