常见例句Objective To observe the expression and kinetic alteration of adenosine deaminase (ADA) and guanase (GUA) during the carcinogensis of rat livers. 目的 观察腺苷脱氨酶(adenosine deaminase,ADA) 和鸟嘌呤酶(guanase, GUA) 在肝细胞癌变过程中的表达与动态变化。 返回 guanase