paramisan sodium英美氨基水杨酸钠化学双语例句Preparation of 4-Paramisan Sodium Colon-specific Delivery Coated Tablets and the Determination of Its Drug-releasing Rate海藻酸钠的最佳浓度是4%。4-氨基水杨酸钠结肠定位包衣片的制备及释放度测定