Nitrocarburizing
气体碳氮共渗; 渗碳氮化
🗣️ 情景例句
Take care, and have a nice flight.
请保重！祝你一路顺风！
Last year, he applied to Harvard University for a scholarship and succeeded in passing a difficult examination.
去年，他向哈佛大学申请奖学金并通过了一个很难的考试。
There are lots of huge buildings in Beijing.
在北京有许多高大的建筑物。