The curved upper surface of a nonturbulent liquid in a container that is concave if the liquid wets the container walls.
弯月面容器中之静止液体的弯曲上表面，如果液体浸润了容器壁，那么弯曲面呈凹状。
2
Maps (on paper or on the screen) are flat surfaces; they require a transformation from the curvedsurface of the earth to the flat plane: a map projection.
纸上或屏幕上的地图是平面的；它们需要从地球的曲面向平面进行转换：地图投影。
3
Suppose I have a curvedsurface-- literally, a surface here in 26.100, which sort of looks like this...