弱力，四种基本力中第二弱的、作用距离第一短的一种力。它只作用于电子、夸克层子、中微子（杜真子）等费米子，并制约着放射性现象。而对诸如光子、引子等玻色子不起作用。
电弱力 electroweak force
削弱力量的 debilitating
一时之强弱在力，千古之胜负在理 Temporary victory may be determined by one's might; but lasting victory is determined by whether one has justice on his side.
削弱力量 weaken strength
单弱无力 weak
软弱无力 Weak ; Incapacitate
形容人体柔弱无力 weak ; feeble
软弱无力的 languid ; flaccid
弱核力 weak nuclear force ; weak force ; nuclear weak force
现代物理学认为宇宙中存在4种力：电磁力、万有引力、强力和弱力。
Modern physics thinks that there are 4 kinds of force in the universe: electromagnetic force, gravitation, strong force and weak force.
在自然界里，人们已发现了四种力：万有引力，电磁力，强力，弱力。
In the natural world, people have discovered four kinds of forces: the electromagnetic force, the gravitation, the weak force, and the strong force.
科学家们认为，万有引力、电磁力、弱力和强力是宇宙中的四种基本作用力。
Scientists believe that gravity, electromagnetic force, strong nuclear force and weak nuclear force are the Four Basic Forces of the universe.
应用推荐