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。
METHODS:Newcastle dis-ease virus(NDV)vaccine was used as model drug, and PLGA as carrying agent to prepare NDV-PLGA oral microspheres by W/O/W emulsifying-solvent evaporation technique.
方法：以鸡新城疫病毒（NDV）作为疫苗模型药物、乳酸-羟基乙酸共聚物（PLGA）为载体材料，采用W/O/W复乳-溶剂挥发法制备NDV-PLGA口服微球。
METHODS:Newcastle dis-ease virus(NDV)vaccine was used as model drug, and PLGA as carrying agent to prepare NDV-PLGA oral microspheres by W/O/W emulsifying-solvent evaporation technique.
方法：以鸡新城疫病毒（NDV）作为疫苗模型药物、乳酸-羟基乙酸共聚物（PLGA）为载体材料，采用W/O/W复乳-溶剂挥发法制备NDV-PLGA口服微球。
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