Aim To prepare ondansetron hydrochloride osmotic pump tablets (OND-OPT) and investigate their in vitro drug release behavior.

目的制备盐酸昂丹司琼渗透泵型控释片剂(OND - OPT)并考察体外释药特性。

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OBJECTIVE:To elucidate the effect of ondansetron(OND), a 5-HT3 receptor antagonist, on the morphine-induced conditioned place preference(CPP) in mice and its possible mechanism.

目的：探讨5-HT3型受体特异性拮抗剂奥丹西隆对吗啡诱导的条件性位置偏爱（CPP）效应的影响及其可能机制。

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The intensity of the gas backflow and axial swirl ond the dilution in the afterburner are enhanced by increasing the air-to-fuel ratio, and then the combustion efficiency is improved.

提高空燃比，可增强补燃室中燃气的回流和轴向涡流强度，加大掺混力度，从而提高燃烧效率。

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The intensity of the gas backflow and axial swirl ond the dilution in the afterburner are enhanced by increasing the air-to-fuel ratio, and then the combustion efficiency is improved.

提高空燃比，可增强补燃室中燃气的回流和轴向涡流强度，加大掺混力度，从而提高燃烧效率。

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