front end hydrogenationfront-end hydrogenation前: front加氢: hydrogenation; hydrogenizati ...加氢: [化学工业] hydrogenation; hydrogenization◇加氢产品 hydrogenated products; 加氢裂化 [化学工业] hydrocracking; 加氢裂化器 [化学工业] hydrocracker; 加氢脱硫 hydrodesulfurization; 加氢装置 hydrogenation plant; hydrogenation unit前加工: preelaboration前加速: preacceleration下载手机词典可随时随地查词查翻译
