Sulphocyaniding
硫氰化处理(零件表面用硫、氮和碳同时饱和)
🗣️ 情景例句
I'm relieved to hear that.
你的话使我松了一口气。
To pull a trailer
拖汽车房屋
He is now retiring from political life and has gone abroad.
他现在退出了政界，到国外去了。