extra-cellularCOCA²⁸⁰¹³⁶⁺⁵BNC¹¹⁴⁰²⁴⁺⁵ 基本例句 un.胞外的；🌏细胞外的 To understand the ecological roles of bacterial flora in the abalone farming waters,33 strains of bacteria were isolated and their extra-cellular enzyme producing capabilities were investigated. 为了解九孔鲍养殖环境中细菌生理菌群的生态作用，对分离自养殖水体的33株菌株的产酶能力和种类进行了研究。 cnki