磷酸二酯酶 II; 磷酸二酯酶II 来源于牛脾; 核酸外切酶I; 型核酸外切酶; 磷酸二酯酶Ⅱ(小牛脾); 磷酸二酯酶Ⅱ 来源于牛脾脏; 3'-EXONUCLEASE TYPE I-SA; SPLEEN EXONUCLEASE; SPLEEN PHOSPHODIESTERASE TYPE I-SA; PDEII; PHOSPHODIESTERASE, TYPE II, CALF SPLEEN; PHOSPHODIESTERASE, TYPE II; PHOSPHODIESTERASE II TYPE I-SA