促胃液素、缩胆囊素和分泌素作用于相同的靶器官.Gastrin and cholecystokinin and secretin act on the same target organs.胆囊疾病和胰腺囊性纤维性变也常常纠缠我.Gall - blader disease and cystic fibrosis also often involve me.在胆囊管上的结扎可能滑脱.The tie on the cystic duct ma...
图 4-9 中使用的机械式继电器, 可以用电子开关来代替.The mechanical relays , which have been assumed in Fig . 4 - 9 , can be replaced by electronic switches.用继电器操作的一种可视信号或音响信号装置, 用以指示有关电路的情况.A visual or audible signaling device , operated by re...