Covar
[化] 科伐共膨胀合金; 科伐铁镍钴共膨胀合金
🗣️ 情景例句
I love the idea.
我喜欢这个主意。
First try, and then trust.
试了才能相信。
In less than a minute, it roared past them only a few feet away.
不到1分钟的工夫，它从离他们只有几英尺远的地方呼啸着驶了过去。