Cobalt-molybdate catalyst
[建] 钴钼催化剂
🧩 词语组成解析
n. 钴, 钴类颜料\\n[化] 钴Co
n. [化]钼酸盐
🗣️ 情景例句
How long has he held office?
他已任职多长时间了？
It's essential to choose the right means of transportation.
选择合适的运输方式很重要。
But every night he heard the noise upstairs.
但每天晚上他都听到楼上的声音。