用helical spring造句子，“helical spring”造句

2、W is attached to a bar, movable vertically around an axis A and suspended by the helical spring F.

1、a balance that measure weight by the tension on a helical spring.

3、It is concluded with the application method of helical spring parameters and the simulation method of high frequency response of suspension in wave theory.

4、Based on the analysis of the helical spring dependent suspension, it is presented that the theoretical expression among the main parameters of the rear axle and the heeling Angle stiffness.