surface immumoglobulin

例句：

1. 1. The researchers found that thesurface immunoglobulin levels in the bloodwere significantly lower than those in healthy individuals.
   研究人员发现，血液中的表面免疫球蛋白水平显著低于健康个体。
2. 2. The studyrevealed that the surface immunoglobulin G levels in theserum were elevated in patients with autoimmune diseases.
   研究发现，自身免疫疾病患者的血清中表面免疫球蛋白G水平升高。
3. 3.The importance of surface immunoglobulinin preventing infections is well recognized.
   表面免疫球蛋白在预防感染中的重要性已被广泛认识。