更多concavo-convex例句

1. A convex lens is fixated on a slanted ceiling emanating a faint amount of soft white light.
2. It is sometimes indented, with its convex side in contact with the periphery of the cell.
3. Ellis's patent boot studs to save the sole, and the Euknemida, or concave-convex fastening springs, are the latest novelties.
4. From his waistcoat pocket he took a little silver convex mirror and surveyed himself critically therein.
5. This insect is much less in size than the former, and is more convex.
6. The body is very convex:, having the thorax as wide as the abdomen, subquadrate, with very convex sides.