gentamicin庆大霉素 gastrointestinal endoscopy胃肠内窥镜检查 germanium(element)锗 generalized epilepsy全身性癫痫 gastric mucosal erosion胃粘膜糜烂 guanidinoethyl胍基乙基 gastric emptying胃排空 glandular epithelium腺上皮 gastroenterostomy胃肠吻合术 ethyl sarin乙基沙林 gel electrophoresis凝胶电泳 gerbich red cell antigen格比克(氏)红细胞抗原