The paper gives the principle and the makeup of power-recoil-test device, builds the mathematical model of recoilapparatus, 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。
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Such collisions should cause individual atomic nuclei to recoil, and with the right apparatus such recoils can be observed.