名词中文翻译
中文翻译：双凹透镜
同义词：
['concave lens', 'convex lens例句：1. The concave-convex lens is used to focus light onto a screen.（双凹透镜用于将光线聚焦到屏幕上。）2. The convex-concave lens is designed to adjust the focus of the image.（凸凹透镜设计用来调整图像的焦点。）']
例句：
-
1. The concave-convex lens is used to focus light onto a screen.
双凹透镜用于将光线聚焦到屏幕上。
-
2. The convex-concave lens is designed to adjust the focus of the image.
凸凹透镜设计用来调整图像的焦点。
-
3. The concave-convex lens is an essential tool for astronomers to observe distant stars.
双凹透镜是天文学家观察遥远星星的重要工具。