The middle portion is the surgical area of the nasolacrimal fistulation.

中段为泪囊鼻腔造孔术需要凿通的部位。

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For example, in the lower middle portion of figure 9 you can see that the Compact task (turquoise line) was running during prime shift.

例如，在图9的下半部分中，可以看到Compact任务(蓝绿色)正在主要班次期间运行。

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It is then connected directly to the middle portion of the small intestine, bypassing the rest of the stomach and the upper portion of the small intestine.

然后直接连接小肠的中部，绕过胃的其余部分和小肠的上端部分。

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It starts and ends with the poignant and painful title track, but the middle portion reveals much more variation.

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Kitchen admits that the ensemble has come to refer to the quartet's strangely happy middle portion as the "nanny-nanny-boo-boo" section.

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Placed neatly in the upper middle portion of its posterior, is the 8-megapixel rear camera (ringed with a gentle hint of blue) with side-mounted single LED flash.

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