cracked residuecracked residuumcracking residuecracking residuumcracking-residuum裂化: cracking渣油: residuum; residual oil渣油催化裂化: rcc渣油加氢裂化: residual hydrocracking; residuum hydrocracking渣油裂化过程: residuum process下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:裂化渣油,即可在微信中查询翻译