active ingredientrn[英]ˈæktiv inˈɡri:djəntrn[美]ˈæktɪv ɪnˈɡridiəntrn性组效rn[例句]Some new products are refinements of these essential oils or synthetic versions of the active ingredient in the natural oil.rn些新产品都些精华油提取物或植物油性工合物
active ingredientrn[英]ˈæktiv inˈɡri:djəntrn[美]ˈæktɪv ɪnˈɡridiəntrn性组效rn[例句]Some new products are refinements of these essential oils or synthetic versions of the active ingredient in the natural oil.rn些新产品都些精华油提取物或植物油性工合物