PGC的音标

expression of survivin in pgc tissues was significantly higher than that in adenoma of gallbladder and chronic cholecystitis. however, survivin expressions had no specificity and positive predictive value for cell differentiation and grade as well as clinic stage of pgc by using statistical analyses.

胆囊癌组织中survivin阳性表达率明显高于胆囊腺瘤和慢性胆囊炎组织，但survivin的阳性表达与胆囊癌细胞分化程度、病理分级和转移无关（P>0.05）。

cogged structure improvement of pgc series double teeth roll crusher

PGC系列双齿辊破碎机齿辊结构改进

this paper introduces cogged structure of pgc series double teeth roll crusher unreasonable structure puts forward improving ways.

介绍了PGC系列双齿辊破碎机齿辊结构不合理处，并提出改进措施。