sialic crust

例句：

1. 1. The protein in the blood is made up of a variety of amino acids and sugars, including the sialic acid that forms the sialic crust on the surface of cells.
   血液中的蛋白质由各种氨基酸和糖组成，包括形成细胞表面糖蛋白层的唾液酸。
2. 2. The sialic crust plays a crucial role in immune system function, as it provides a barrier against pathogens andhelps to regulate the movement of immune cells.
   糖蛋白层在免疫系统功能中起着至关重要的作用，因为它为病原体提供了一个屏障，并帮助调节免疫细胞的运动。
3. 3. In recentyears, scientists have been studying the structure and function of the sialic crust, hoping to understand how it affects disease progression and treatment.
   近年来，科学家们一直在研究糖蛋白层的结构和功能，希望了解它如何影响疾病的进展和治疗。