Glass fibres differ from bulk glass of the same composition in two major respects.

玻璃纤维在两个主要方面不同于相同成分的块状玻璃。

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For students of composition, an awareness that rhetorical patterns differ from one culture to another can help them become more quickly proficient in a writing pattern that is not native to them.

学习写作的人若能意识到各种文化在修辞模式上的差别，则有助于他们迅速掌握对他们来说是外在的写作模式。

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All magma consists basically of a variety of silicate minerals, high in silicon-oxygen compounds, but the chemical composition of any given flow may differ radically from that of any other.

所有的岩浆基本上地包括多种多样的硅酸盐矿物，高硅氧化合物；但任何给定的(岩浆)流的化学成分都可能与其他岩浆流有完全不同地化学成分。

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