The bainite transformation during the incubative period was inevitable to form carbon leant zones and carbon enriched zones through the fluctuation.
贝氏体转变在孕育期内，通过涨落必然形成贫碳区和富碳区；
Methods: Observing the incubative period and the times of cough induced by ammonia liquor or citric acid phlegm displacement of rat, the tracheal ciliary movement of duck.
方法：利用浓氨水喷雾法，枸橼酸喷雾引咳法，毛细玻管引痰法及采用观察小鸭气管纤毛运动的方法来研究信宁咳糖浆在镇咳、祛痰方面的药理作用。
Methods: Observing the incubative period and the times of cough induced by ammonia liquor or citric acid phlegm displacement of rat, the tracheal ciliary movement of duck.
方法：利用浓氨水喷雾法，枸橼酸喷雾引咳法，毛细玻管引痰法及采用观察小鸭气管纤毛运动的方法来研究信宁咳糖浆在镇咳、祛痰方面的药理作用。
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