硅藻已经通过胞外分泌二氧化硅，这是细胞直接把物质分泌出细胞壁的一个生物过程。
Diatoms already secrete silica by exocytosis-a biological process by which cells direct secreted material outside the cell walls.
显微观察及实验分析表明，XH - 1菌主要破乳活性成分为胞外分泌的蛋白物质。
It is deduced through the microscope observation and analysis that the demulsification active component of the strain XH-1 was the extracellular secreted protein substances.
病毒感染细胞后以细胞内吞方式进入细胞，在胞浆内复制，装配好的病毒以出芽或细胞外分泌释放到细胞外。
PRRSV entered Marc-145 cells by endocytosis, and replicated in the cytoplasm. The mature viruses were released from infected cells by budding or exocytosis.
细胞形态均一，呈圆形或卵圆形，未见胞质突起，在外分泌部未见到B细胞。
B cells were round or oval in shape, without cytoplasmic processes and none of the exocrine pancreas was stained.
细胞形态均一，呈圆形或卵圆形，未见胞质突起，在外分泌部未见到B细胞。
B cells were round or oval in shape, without cytoplasmic processes and none of the exocrine pancreas was stained.
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