在铅基弛豫铁电材料的制备中，很难避免焦绿石相的出现。

However, such materials are difficult to be fabricated without the appearance of a pyrochlore phase.

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结果表明：层层快速退火工艺，可有效抑制焦绿石相的形成。

The results indicate that the pyrochlore phase is restrained successfully by the layer-by-layer rapid thermal annealing method.

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实验结果表明，逐层快速退火工艺可有效抑制焦绿石相的形成；

The results indicate that the pyrochlore phase was restrained successfully by layer-by-layer rapid thermal annealing method.

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