METHODS An O/W emulsion-solvent evaporation method was used to prepare fluorouracil sustained release microspheres.

方法以聚乳酸为载体材料，O W型乳化挥发法制备氟尿嘧啶微球；

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OP emulsifier has changed W/O emulsion to O/W emulsion, thus improving heavy oil emulsification for the convenience of recovery and transportation.

OP乳化剂使W/O型乳状液转变为O/W型，提高了稠油乳化程度，便于稠油的化学乳化开采和输送。

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This paper discusses the influence of water volume fraction, temperature, and time on the rheological properties of W/O emulsion.

这篇论文讨论了含水率、温度和时间等因素对 W/O 乳状液流变性的影响。

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