... test positive 检测结果呈阳性 test negative 检测结果呈阴性 there are no vaccines against the virus. 尚无针对h7n9禽流感病毒的疫苗。 ...
基于20个网页-相关网页
对病人样本的最初检测结果呈阴性。
Initial tests on patient specimens produced negative results.
许多患者的粪便潜血检测结果呈阴性，但却患有结肠息肉。
Many patients with colon polyps are tested negative for stool occult blood.
微生物检测结果呈阴性，表明细胞未受到细菌、真菌、病毒及支原体污染。
Type of cell is absolute fibroblast. 4 The results of microbial detection showed that cultured cells were not contaminated by bacteria, yeasts, fungi, virus and mycoplasma.
应用推荐