Carburizing apparatus
[化] 碳化装置
🧩 词语组成解析
[机] 渗碳
🗣️ 情景例句
Did you sleep soundly last night.
你昨晚睡得好吗？
Here is our contract.
这是我们的合同。
Up to now, historians have assumed that calendars came into being with the advent of agriculture, for then man was faced with a real need to understand something about the seasons.
历史学家迄今认为日历是随农业的问世而出现的，因为当时人们面临着了解四季的实际需要，