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
Hi, Son.
嗨 儿子。
The people at the party were worried about Janet because no one was aware of where she had gone.
参加聚会的人们都为珍妮物担心，因为没人知道她去哪里了。
Our TV set was broken last week. He mended it for us.
上星期我们的电视机坏了。他为我们修好了。