结果表明，烧后试样的热膨胀系数比未烧的高；

The results showed that the coefficients of thermal expansion(CTE) of as-sintered samples were higher than those of green samples .

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之后，她烧毁了多年来与丈夫的往来信件。仅留下两封未烧。

She then burned all her letters she and her husband had written to one another over the years, except for two.

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连年火烧使土壤密度比未烧林地下降，而孔隙度和分散系数升高。

The soil density is decreased, and the disperse coefficient and porosity are increased in the sites where were burnt in successive years.

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