Precarburization
预先碳化[渗碳]
🗣️ 情景例句
I really appreciate all of your hospitality.
十分感谢您的款待。
I'd like to have you come to my house for dinner sometime.
改天请到我家来吃饭。
When you compare the prices,you must take everything into consideration.
当你在考虑对比价格时，首先必须把一切都要考虑进去。