Inbred mice of the DBA / 2 strain developed severe necrotizing lesions of the pancreatic islets.近亲繁殖的DBA/2系小白鼠发生了胰岛严重坏孢病变.Small lesions may exhibit no caseation, and no organism may be demonstrated.微小病灶可不出现干酪性坏死, 也查不到细菌....
某些种类的食物也可以装入密封的金属罐里。Certain types of foods are also dispensed in pressurized canisters.密封的飞机内很少需要补充氧气。Supplementary oxygen is rarely needed in pressurized aircraft.这是一封未密封的信, 不要看.This is an unsealed letter, don't re...