It is pointed that engine s various faults can make the gas acting pressure lower in individual cylinders, lead to worsen the balance of gross overturn moment, and wobble the idling engine.

Various faults of an engine can make the gas acting pressure lower in individual cylinders,leading to the worsening balance of gross overturn moment and more engine side vibrations,with the idling engine wobbling.

In the condition of a low high to width ratio, because of the not enough self-weight, the disaggregation of the building is not enough, we should increase the blasting-high of reinforced-concrete pillar and collapse moment.

Analysis of miner's overturning moment under different bottom angle;

The causes of tire overturning moment (abbreviated as TOM below) generation were first studied, and effects of Patch Shift & Carcass Effective Camber were presented.

Tire overturning moment (abbreviated as TOM below) is especially important to investigate the vehicle roll-over occurrence and tire effective carcass camber.