These react with nearby metal atoms and form tough, protective films a few molecules thick to ameliorate the damage.
这些液体将与周围金属原子发生反应，形成几个分子厚、坚固且具有保护性的膜，以修复表面的损害。
2
A saw consisting of a tough, fine - toothed blade stretched taut in a frame, used for cutting metal.
弓锯一种锯，由一条坚韧、利齿的锯条张紧在一个框架里构成，用于切割金属。
3
Ti is a very special metal texture is very light, but also very tough and corrosion resistance, it won't like silver will be black, lifelong keep itself at room temperature is tonal.