Nitriding steel
[机] 氮化钢
🧩 词语组成解析
v. 渗氮
steel
[stil]
n. 钢，钢铁;钢制品;兵器;钢铁工业;
vt. 包上或镀上钢;使坚定;
adj. 钢制的;钢铁业的;坚强的;[色彩]青灰色的;
🗣️ 情景例句
I've got it. This one's on me.
我都付了。这一顿我请客。
There's no such thing as a free lunch.
天下没有白吃的午餐。
The next morning the whole family trooped in to watch the performance.
第二天早晨全家人结队来到起居室看我表演。