Sintropac
加铜铁粉; 铁铜混合粉末
🗣️ 情景例句
Would you like to discuss it over lunch, Mr. Smith?
史密斯先生，吃饭时再讨论好吗？
An ass endures his burden but not more than his burden.
驴子能负重，但不堪超过力之所及。
Yes, a little.
是的，有点儿。