polishing metal meaning in English
抛光金属
Examples
- The mirrors may have consisted of polished metal and had peep - holes drilled in the middle for use in aiming
镜子可能由打亮的金属片组成，中间有一个窥孔用于瞄准。 - If we can rule out fairly large blown - glass spherical mirrors , that would seem to leave only small polished metal mirrors , which were known in the 15th century and indeed earlier
如果排除掉大型玻璃球镜的可能性，就剩下较小的金属磨光镜；而这种镜子的确在15世纪或更早之前就已经存在。