从两束喷注的能量和动量可以推算出产生它们的粒子的质量。
From the energies and momenta of the two jets, researchers can infer the mass of the particle that produced them.
第二十一章的相对论性力学主要限于强调能量和动量的概念。
The relativistic mechanics in chapter 21 is circumscribed with primary emphasis on the concepts of energy and momentum.
碰撞后的夸克再经过介子内的相互作用把能量和动量传给整个介子。
Find the internal energy of the meson as represented by the vibration energy of the spring, and the kinetic energy of the meson as a whole after the collision.
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