基本解释试液同根派生 test-solution相关词英汉例句Why is the more diluted solution used for the assay of trimethoprim than that for sulfamethoxazole?为何甲氧苄啶含量测定时供试液的稀释倍数与磺胺甲恶唑测定时的要不同？test-solution更多例句