Warning: file_put_contents(/www/wwwroot/ppbbu/6s-iso.com/cache/4f624e42dd9f9bd6eb3855ca39dc01ec.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/6s-iso.com/index.php on line 55 日韩欧美国产高清在线观看,香蕉视频ios下载
Process of synthesizing ACVA from cyan alcohol was studied,using sodium cyanide,levulinic acid,and A as starting materials. 對氰醇法合成ACVA的工藝進(jìn)行了研究，該法采用氰化鈉、果糖酸及物質(zhì)A為原料。