There are still applied physics of lever principle.
这里边还运用了物理学中的杠杆原理。
The present invention is developed based on lever principle or force moment equilibrium principle.
本发明是根据杠杆原理即力矩平衡原理，研制而成。
The present invention is developed based on lever principle or force moment equilibrium principle.
本发明是根据杠杆原理即力矩平衡原理，研制而成。
应用推荐