The walls of the sinuses are lined with endocytic cells which engulf any foreign particles that might be present in the lymph . 窦的壁衬盖着内吞细胞,这些细胞能吞食淋巴中可能出现的任何一种外来颗粒。
2.
Plastics . polyvinyl chloride resins . determination of number of impurities and foreign particles 塑料制品.聚氯乙烯树脂.杂质和外来颗粒数值的测定