Vanadium catalysts
[化] 钒催化剂
🧩 词语组成解析
n. 钒\\n[化] 钒V
n. <化>催化剂( catalyst的复数形式 ); 触媒; 促进因素; 有感染力的人
🗣️ 情景例句
Good afternoon, Mrs. Martin. I've come to see Mr. Martin.
您好，马丁夫人。我来看看马丁先生。
You must go to the moon. It's your duty.
你必须上月球去，这是你的职责。
it was not long before its use as the uniquely recognizable broadcasting frequency for interstellar communication was suggested.
提出把它作为星际间唯一可辨认的广播频率就为期不远了。