原糖

Fibronectin is a very important biological molecule in collagen glucoprotein that plays a number of important roles in the extracellular matrix. It has roles in structural support and signaling cues for cell survival, migration, differentiation, gene expression, growth factor signaling, cell contractility, epithelial tissue repair, alignment regularization and organism immunoregulation.

纤维连接蛋白(fibronectin，FN)是一种具有重要生物学活性的非胶原糖蛋白，是细胞外基质(extracellular matrix，ECM)的重要组成部分，参与机体的细胞连接黏附、增殖分化、信号传导、基因表达、收缩调节、上皮组织修复、排列规则化以及机体免疫调控等重要的生理功能。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。