Forcep curettage after anesthesia with propofol intravenous injection (observing group) and that with no method to relieve pain(control group).

应用异丙酚静脉给药麻醉后钳刮(观察组)。与无任何镇痛方法钳刮(对照组)。

OBJECTIVE:To study the adsorption of disposable transfusion connective tube and infusion needle for single use only to nitroglycerin in intravenous injection via minipump.

研究持静脉注射时一次性液连接管和液针对油的吸附作用。

The antipsychotic drug fluphenazine has a prolonged period of action when it is given by intramuscular injection, but not when it is given by intravenous injection.Suggest why this is the case.

精神抑制药氟奋乃定，采用肌肉注射的话会有一段延迟的反应期，但是采用静脉注射却没有，说明为什么会出现这种情况。