magnification
noun [ U ] uk/ˌmæɡ.nɪ.fɪˈkeɪ.ʃən/ us/ˌmæɡ.nə.fəˈkeɪ.ʃən/
放大
the process of making something look bigger than it is, for example by using a magnifying glass
Magnification of the leaf allows us to see it in detail. 树叶放大后，我们能看得更清楚。
These binoculars have x10 magnification (= they magnify ten times). 这架双筒望远镜的放大倍数为10倍。