His mind eddied over the lazy sensual memories of striding a horse and looking down a hill into a sunlit valley beneath . 于是思绪又袅袅地回到了当年,他觉得仿佛又懒洋洋,美滋滋地跨马立在上坡高处,望着底下阳光灿烂的山谷。
Roundworm eggs, pox and marek's disease viruses, coccidia, and other infections materials can be carried on crates, footwear, and vehicles . 圆虫虫卵,痘和马立克氏病病毒,球虫及其他传染性物质,都可以由条板箱,鞋和运输工具携带。
The update review and control measure of marek ' s disease 马立克氏病的研究进展及防制策略
Isolation and identification for marek ' s disease virus of chicken 鸡马立克氏病病毒分离与鉴定方法
Diagnotic techniques for marek ' s disease 鸡马立克氏病诊断技术