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 think I've caught a cold.
我觉得我感冒了。
Who bought that new house down the street from you?
谁挨着你的那条街买了那幢新房子？
Yes, he has.He sold it last week.
是的，卖掉了。他上星期卖掉的。