diaminostilbene disulfonic acid英美【化】二氨基┴二磺酸化学双语例句Application of Catalyst Promoters in Preparation of 4,4 '-Diaminostilbene-2,2'-disulfonic Acid by Palladium-Carbon Catalytic Hydrogenation助剂催化剂在Pd/C催化加氢法制备DSD酸中的应用