n.壳牌催化加氢过程 catalytic hydrogenation process: 催化加氢法; 催化氢化法catalytic hydrogenation: 催化加氢作用; 催化氢化作用; 催氢化catalytic hydrogenation apparatus: 催化氢化器catalytic transfer hydrogenation: 催化转移氢化continuous catalytic hydrogenation: 连续催化加氢下载手机词典可随时随地查词查翻译