更多fresnel例句

1. Fresnel therefore adopted the ingenious device proposed by Condorcet, that of constructing a lens of a number of distinct pieces.
2. But for lenses the burner has seventeen films of flame, and is said to possess six times the power of the Fresnel lamp.
3. At the close of the congress the foreign secretaries placed a crown on the tomb of Fresnel.
4. Now, Fresnel's theory always permits of this, to-day as well as before Maxwell.
5. No theory seemed more solid than that of Fresnel which attributed light to motions of the ether.