catalytic hardener硬化: harden; stiffen; stiffening; ...催化剂: catalyst; catalytic agent环化催化剂: cyclization catalyst活化催化剂: activating catalyst净化催化剂: cleaning 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:硬化催化剂，即可在微信中查询翻译
