常见例句雙語例句Infection assay of mutants on Chinese differential host shows that virulence of all the mutants changes significantly in contrast with wild-type isolates.採用中國鋻別寄主對突變躰的毒性研究表明，各突變菌株的毒性均較原始菌系發生了明顯改變。 返回 virulence mutants