例句與造句

1. A "'sensitivity speck "'is a place in silver halide crystal where latent image is preferentially formed.
2. When a silver halide crystal is exposed to light, a sensitivity speck on the surface of the crystal is turned into a small speck of metallic silver ( these comprise the invisible or latent image ).
3. It's difficult to find sensitivity speck in a sentence. 用sensitivity speck造句挺難的