Nitrocarburizing
气体碳氮共渗; 渗碳氮化
🗣️ 情景例句
Is there a station near here?
附近有地铁站吗？
We continued to struggle up the steep slope of the mountain.
我们为了攀登山的陡坡，不断地倍尝辛劳。
I am an art student and I paint a lot of pictures.
我是个学艺术的学生，画了很多画。