例文
- The competition involved a sequence of 10 forward spring jumps without weights.
- A block of wood called a " headblock " might be placed between the fifth wheel and the forward spring.
- Darby's single forward spring-jump of 12 ft 2 ?in, achieved without weights on October 24, 1889,
- The axle is located by a triangular strut linking axle and chassis and the main drive thrust is transmitted to the car by links between the ends of the axle and forward spring brackets.