Sipylite
褐钇铌矿
🗣️ 情景例句
Nothing much. I'm just taking one day at a time.
没什么。我只是过一天是一天。
If not, our repairman can come to you.
要不然，我们的维修人员可以上你那里去。
When I present my views on the competitive products, I will refer to the patent situation.
专利的情况会在说明竞争产品时一并提出。