单项商品价格指数，单项商品价格指数,danxiang shangpin jiage zhishu，商品,单项,价格指数,danxiang,jiage,shangpin，[拼音]：danxiang shangpin jiage zhishu[外文]：price index of individual commodity反映某一种商品价格水平...
单相异步电动机，单相异步电动机,danxiang yibu diandongji，单相,异步电动机,danxiang,yibu,diandongji，[拼音]：danxiang yibu diandongji[外文]：single phase asynchronous motor用单相交流电供电的异步电动机。所用电源方便，结构简单，价格低...