The results provided some guidance for the improvement of separation efficiency of the wet-process phosphoric acid slurry and the selection of separation machines.

实验结果对提高湿法磷酸料浆的分离效率以及分离机械的选型都具有重要的指导意义。

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The effect of empty tower used in wet-process phosphoric acid production is better by comparison with filled tower.

通过空塔与填料塔在湿法磷酸过程中的应用情况对比，说明空塔用于湿法磷酸生产运行效果良好。

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Abstract: in this paper, a two-step method for purifying non-concentrated wet-process phosphoric acid was developed.

文摘：采用两步法对未经浓缩的湿法磷酸进行净化研究。

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One of the most striking pairings shows two African-American women in tintype, a variant of the wet-collodion process that was popular in the 1860s owing to its cheapness and durability (the images were printed on metal sheets, typically iron).

ECONOMIST: The daguerreotype is back