... armature 电机转子，电枢；保护壳 arm of force 力臂 armour plate 护板 ...
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?杠杆的受力点和支点之间的距离
...[arm of force] 杠杆的受力点和支点之间的距离 [ability falling short of one's wishes;ability not equal to one's ambition;lack the ability to do what one would like to...
The effect of tension on armofforce was studied that: forward tension can enhance the armofforce.
连轧过程张力是最主要的因素，研究了张力对力臂的影响规律：前张力使力臂增加。
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In medieval times, a lance couched under the rider's arm, unifying the forceof rider and weapon, would throw its wielder backwards off the horse at impact.
Confirmation of supersymmetry would be a shot in the arm for M-theory and help physicists explain how each force at work in the universe arose from one super-force at the dawn of time.