基本解释祛痰同根派生 英汉例句Results In the experiment of expectorant effect, oral administration of the water or the ethanol extracts of pinellia Tubers showed no obvious expectoran. 目的比较四川南充与有关产地半夏的祛痰镇咳作用,为半夏的规范化种植和进一步开发利用提供依据。