例句與造句

1. The load is the reciprocating mechanism plus the resistance to motion as the wiper blades move back and forth across the windshield.
2. These devices consist of a chamber ( s ) that obstructs the media flow and a rotating or reciprocating mechanism that allows the passage of fixed-volume amounts.
3. As the tray is advanced, a reciprocating mechanism pushes the currently loaded slide back out into the tray, then the tray is rotated, dropping the next slide into position between the light source and lens.
4. It's difficult to find reciprocating mechanism in a sentence. 用reciprocating mechanism造句挺難的