Nihard
镍铬冷硬铸件, 含镍耐磨铸铁
🗣️ 情景例句
Unless in uniform, he doesn't look like a policeman.
除非穿上制服，要不他看起来不像警察。
How many pieces are you going to take?
你要拿几支？
We endeavour to avoid the old, romantic idea of a gusher, which wastes oil and gas.
我们尽量避免使用陈旧天真的喷井方法，那样会浪费石油和天然气。