例句與造句

1. This also covered a " comb tooth guard or protector " which could be attached both to the hoe form and to a conventional straight razor.
2. where n is an integer, f _ r is the comb tooth spacing ( equal to the mode locked laser's repetition rate or, alternatively, the AM frequency ), and f _ 0 is the carrier offset frequency, which is less than f _ r.
3. It's difficult to find comb tooth in a sentence. 用comb tooth造句挺難的