Brinell
hardness [冶]布氏硬度,压球硬度
🗣️ 情景例句
He's coming over to talk about it.
他就是要来谈这个问题。
We have thirty minutes to kill.
我们有三十分钟空闲时间。
Hello, Uncle Wang. Nice to meet you.
你好，王叔叔。见到你很高兴。