Zeolite(molecular sieve)catalyst
[化] 沸石催化剂; 沸石分子筛催化剂
🗣️ 情景例句
I beg you pardon?
对不起，你说什么？
Every dog has his day.
凡人都有得意之日。
Sorry! It's not a very good line. Could you speak more clearly, please?
对不起！电话线路不太好。你能说清楚一些吗？