比例结合 meaning in English

gearing

To satisfy the need for cell differentiation , vision maintenance , reproduction and individual maturity , vitamin a is transported to target cell in a highly specific and regulated manner by combination with rbp and transthyretin . the fluctuation of rbp in blood circulation or urine could be observed due to some diseases
维生素a结合蛋白与维生素a及前白蛋白以1 ： 1 ： 1的比例结合形成复合物后，共同将维生素a从肝脏运送到靶组织以满足机体生长发育、视觉维护以及细胞分化等生命活动需要。
Ribonuclease inhibitor ( ri ) is an acid cytoplasmic protein with the molecular weight of 50 kd . this ubiquitously distributed glycoprotein tightly binds and inhibits ang with a stoichiometry of 1 : 1 . the remarkable affinity of ri and ang supplies an approach to invalid the function of ang which is to stimulate neovascularization
核糖核酸酶抑制因子( ribonucleaseinhibitor , ri )能够以1 ： 1的比例结合并抑制ang ，这无疑为我们提供了一条重要的纠正ang引起的新生血管生长失控的途径，从而治疗相关疾病。