agrin
adj. 咧嘴笑的
adv. 咧嘴笑地
n. 一种蛋白聚糖（尤其在神经肌肉连接的发育过程中起作用）
例句
Staining for agrin, the major HS proteoglycan core protein in the GBM, was unaltered.
而GBM内主要的HS蛋白多糖核心蛋白—集聚蛋白（Agrin）染色没有变化。
Constructed antisense plasmids were used to explore function of agrin in the proliferation of lymphocyte activation.
并构建针对集聚蛋白的反义质粒，从而进一步研究下调集聚蛋白的表达对淋巴细胞活化的影响。
It is found that AGRIN material using in optical systems not only improves the image quality but also lowers the testing difficulties.
发现使用AGRIN材料，不仅会使光学系统成像质量有所提高，而且在制造和测试上都有很大的优势。
