医生、牙医和化学家们开发出的牙粉中含有研磨牙齿的物质，如砖灰、碎瓷器、陶器和乌贼。

These powders were developed by doctors, dentists and chemists and included substances very abrasive to teeth, such as brick dust, crushed China, earthenware and cuttlefish.

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碎和研磨负担，提高系统生产能力，增产幅度在50%以上。

Broken and grinding burden and improve productivity, increase production rates above 50%.

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方法：以大鼠冷缺血胰腺组织作为标本，分别采用剪碎和研磨法制备胰腺组织悬液。

Method: All of the samples for this experiment were collected from pancreas of rat with post cold ischemic injury.

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