发现增殖组织全细胞抽提液中酶比活高于正常分化组织，而且在异常增殖组织中酶比活的增高更为显著。
The specific activity of topoisomerase I was higher in proliferating tissues and much higher in malignant tissues than that in differentiated tissues.
高效表达高比活植酸酶是进一步提高植酸酶发酵效价、降低植酸酶生产成本的一个有效途径。
High-level expression of phytase with high specific activity is an effective way to improve phytase fermentation potency and reduce its production cost.
同时测定了培养组织的碱性磷酸酶活性，培养组织与河蚌外套膜具有相近的比活及相对酶活。
The specific and relative activities of alkaline phosphatase were similar for both nature and cultured tissues of mantles in this experiment.
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