搜尋：grinding 在 地質 分類當中

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哺乳動物牙齒的基本構造

哺乳動物牙齒的基本構造

. This is the outermost part of the teeth and is used for chewing and grinding food The crown.....more

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哺乳動物化石異型齒

哺乳動物化石異型齒

for grinding up food. Some mammals (such as pigs and monkeys) have very well developed canines.....more

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脊椎動物化石 哺乳動物 概論

脊椎動物化石 哺乳動物 概論

cusps to expand the grinding surface, and omnivores rounded cusps of varying heights to help cut.....more

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象齒生長與發育

象齒生長與發育

. The way that elephants’ cheeks grow and erode away at an angle greatly increases the grinding.....more

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