The third is spray drying method.

第三种方法：喷雾干燥法。

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High viscosity paste should not use spray drying method, and the cost of this method is high, generally use.

高粘度糊液不宜使用喷雾干燥法，且这种制法成本较高，一般很少采用。

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The preparation methods of the ferrite hollow microspheres, such as spray drying method, templating method, layer - by - layer assembly, and the investigation status are reviewed.

综述了国内外铁氧体空心微球的各种制备方法，如：喷雾热结法、模板法、逐层组装法等，及其优缺点和研究现状。

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Cofounder Platz found that spray drying, a method of dehydration used to make powdered milk, produced a consistent particle, but the testing equipment was designed to make only a few grams per day.

FORBES: The Impossible Made Possible