它们也会以各种形状存在，带状形、球形、椭圆行，但它们并不都是有害的，事实上，没有它们，我们也活不长。

Bacteria also come in all kinds of shapes, strings, spheres, oblongs. But they aren't all bad guys.

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所有椭圆囊均行扫描电镜检查并行毛细胞计数。

All utricles were observed by scanning electronic microscope, and the number of survival utricular hair cells was accounted.

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