将“optics"翻译成中文

German precision instruments and optical equipment, for example, lost their competitive edge when Japan entered the game.

举例来讲,日本加入全球竞争以后,德国的精密仪器和光学设备就失去了竞争的优势。

To do this, I designed a multilayer optical material shown here in a microscope image.

我為此設計了一種多層的光學材料, 在這張顯微鏡影像中可以看見。