Carburizing apparatus
[化] 碳化装置
🧩 词语组成解析
[机] 渗碳
🗣️ 情景例句
How do you do?
您好！
But last year we had a big one.
但去年下了大雪。
We can offer a 10% discount for orders over 10000 pieces.
订购一万个以上，我们可以打九折。