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.

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要牢记，当我们对z积分时，首先固定一个点，看看它们的值，取一个垂直切片,并找出z的积分限。

So, remember, when we did it first over z, we start by fixing a point, x and y, and for that value of x and y, we look at a small vertical slice and see from where to where we have to go.

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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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