例句與造句

1. Propel section is compactly designed so that the front screw and the rear screw are put in 5 mm close to each other.
2. The outward evidence of on-board AWS comprised a protective shield behind the front screw coupling, a box to house the necessary batteries immediately in front of the cab on the right-hand side and a cylindrical vacuum reservoir above the right-hand running plate.
3. It's difficult to find front screw in a sentence. 用front screw造句挺難的