例句與造句

1. Photographic filters sell in larger quantities at correspondingly lower prices than many laboratory filters.
2. what about a laboratory filter ?  Preceding contribs ) 01 : 45, 1 April 2011 ( UTC)
3. Photographic filters do not need the accurately controlled optical properties and precisely defined transmission curves of filters designed for scientific work, and sell in larger quantities at correspondingly lower prices than many laboratory filters.
4. It's difficult to find laboratory filter in a sentence. 用laboratory filter造句挺難的