yán jiū rén yuán / tōng guò / shēng wù cè dìng / bǐ jiào / le / liǎng zhǒng / yào wù / duì / xì bāo / huó xìng / de / yǐng xiǎng研究人员通过生物测定比较了两种药物对细胞活性的影响。The researchers compared the effects of two drugs on cell activity through a bioassay.