Nitrocarburizing
气体碳氮共渗; 渗碳氮化
🗣️ 情景例句
Look at those funny-looking clowns.
你看那些滑稽的小丑。
You were here in February,weren't you?
二月份你曾在这里，对不对？
Looking at his watch, he saw that it was one o'clock, but the bell struck thirteen times before it stopped.
他一看表，才1点钟，可是那钟一边敲了13下才停。