cracking catalyst裂化: cracking催化剂: catalyst; catalytic agent沸石裂化催化剂: zeolite cracking calalyst; zeolitic cracking catalyst加氢裂化催化剂: hydrocracking catalyst流化床裂化催化剂: fluid cracking catalyst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:裂化催化剂,即可在微信中查询翻译