In automotive and chemical industries, it usually requires high-performance cylinders to complete the media storage, transport and reaction, and composite cylinder is one of the options.
M cells in the GI transport transcellularly antigens or organism selectively from the gut lumen and trigger the immune reaction.
在胃肠道，M细胞主要承担着向黏膜下转运肠腔内的抗原，进而诱发免疫反应的功能。
3
Itsimporiant foundation is the quantitative relations between molecular structure and thermodynamic properties, transport properties and reaction kinetics.