1. It is believed that when the braking force ratio is 0.2 and the efficiency braking force ratio is 0.15, the reliability and safety of train operation could be assured.

2. To increase component of grinding force ratio can increase principal stress extreme values in grinding stress field. Materials can be removed by brittle fracture.

3. The sawing forces, force ratio, average force of single active diamond grain were analyzed.

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4. The grinding force ratio in grind-hardening consists with the grinding force ratio in grinding quenched steel, and is bigger than the grinding force ratio in grinding unquenched steel.

5. The maximum seismic force ratio of the shell reaches 0.22.

6. Compact design, to grip force ratio are ideal for more...

7. From the results, it can be found that sawing forces and force ratio for alumina ceramic were both larger than gem.

8. The main reason of the damage of the special-column is the strong shear force ratio, so it's important to control the shear force ratio of the joint.

9. Wall thickness of steel tube, concrete strength, shear-span ratio and axial force ratio were considered as test parameters.

10. The shear strength of CFST columns was correlated to the axial force ratio and the shear-span ratio.