Floating hammer, force of impact don't act on basic shaft and surface, have buffer action.

环锤浮动, 冲击力不直接作用于主轴和壳体, 有一定的缓冲作用.

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Among them , the acid buffer action is stronger than the alkali buffer action.

且对酸的缓冲能力强于对碱的缓冲能力.

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