农场主每天给这些层架式鸡笼里的鸡喂食，拾取鸡蛋。
The farmer feeds these "battery hens" each day and collects their eggs.
取白喉型鸡痘病死鸡的喉气管组织，切片并固定。
Laryngotrachea tissues from the fowl dead by fowl pox of diphtheritic type were dissected and fixed.
取白喉型鸡痘病死鸡的喉气管组织，固定、包埋、切片、染色，用电镜对其形态的超微结构进行观察。
Laryngotrachea tissues from the fowl dead by fowl pox of diphtheritic type were dissected, fixed, embedded, strained and ultrastructural changes of morphology were observed by EMS.
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