今年姑妈拿给我们的粽子形状不规则，有四个棱角，粽子里面的馅有土猪肉、花生、红豆和绿豆。

This year, my aunt took to the shape of the dumplings are irregular, there are four edges and corners, dumplings inside the stuffing has soil pork, peanuts, red beans and mungbeans.

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对原来硅锭的四边平面垂直度起到修正功能，确保硅锭四面及棱角的损伤层有效的去除。

It can correct the verticality of the four faces of the original silicon ingots to ensure the affected layers of the four faces and edges are effectively removed.

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