或者针状结构的尖锐晶体像钉子刺穿木头那样，刺穿‘帽子’样的胆固醇沉积物。

Or the crystals, which are sharp, needle-like structures, poke their way through the cap covering the cholesterol deposit, like nails through wood.

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硅灰石微粉碎过程中，为保护硅灰石的短纤维针状结构，可在粉碎前对硅灰石进行煅烧空冷处理。

In the process of wollastonite fining, we can forge and then cool it to protect its crystal structure which is short acicular fiber.

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取下针状粮仓，其圆柱状结构也可用于直肠镜检查和活检。

Taking off the pins granary, its cylindraceous structure can be also used for rectoscopy and biopsy.

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