Bhn
abbr. 布氏硬度值（Brinell hardness number）
🗣️ 情景例句
We'll open a letter of credit if you promise to effect shipment one month earlier.
如果你方答应提前一个月交货，我们就同意开信用证。
Who laughed a while ago?
刚才谁在笑？
I haven't heard from her for a long time.
我好久没有她的消息了。