The paper gives the principle and the makeup of power-recoil-test device, builds the mathematical model of recoil apparatus, and does the numerical value simulation with recoil-movement-model.
给出了后坐试验装置的原理和结构，建立了后坐器的数学模型。
Such collisions should cause individual atomic nuclei to recoil, and with the right apparatus such recoils can be observed.
因为这种碰撞会引起个体原子核的反作用，只要有适用的仪器就可以观测到这种反作用。
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