By controlling the hydration of alkoxide, and with n-butanol azeotropic distillation and ethanol rinsing methods, the preparation process of superfine titania powder was investigated in detail.

利用控制醇盐水解的方法，分别采用正丁醇共沸蒸馏和乙醇洗涤这两种工艺，详细研究了超细二氧化钛粉体的制备过程。

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Powder painting commonly known as the Temple of the manuscript is the work of the temple mural painting master copy or for class n only drawings, both black and white drawings.

庙画手稿俗称粉本，是画工作庙宇壁画的底本或作课徒画稿，均为黑白画稿。

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The ethanol extract from the twig bark powder of Periploca sepium was suspended in water and successively treated with petroleum ether, ethyl acetate and n-butanol.

将杠柳枝皮粉末的乙醇提取物悬浮于水后，依次用石油醚、乙酸乙酯和正丁醇萃取。

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N, a milk-derived source of calcium that it adds to Nesquik's cocoa powder.

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