Norium
混合稀土金属
🗣️ 情景例句
I called channel five.
我打电话给了第五频道。
Pat's results are in agreement with the textbook experiment.
柏德获得的实验结果和课本一致。
it must be known to any kind of radio astronomer in the universe.
这个频率是宇宙中任何射电天文学家都应该熟悉的。