To ealuate accine efficacy, groups of 3-week-old specific pathogen free (SPF) chickens were intramuscularly injected with the four plasmids.是什么意思_To ealuate accine efficacy, groups of 3-week-old specific pathogen free (SPF) chickens were intramuscularly injected with the four plasmids.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句