对国际单位制(SI)进行重新定义的目的是使其具备未来适应性。如果我们将SI视为对所有量进行测量的基础,我们希望这一基础在未来始终保持坚固。当一个体系承受始料未及的压力时,它可能出现裂缝。当我们要求测量不断实现更高的准确度,或者在极端环境下开展测量时,如果测量单位在定义之初没有考虑到以上这些情况,我们的单位制就会承受极大的压力。在变革之前,世界各国已经用了数十年的时间用实验测试基础物 The purpose of redefining the SI is to make it adaptable to the future. If we consider SI as the basis for measuring all quantities, we hope this foundation will remain strong in the future. When a system withstands the unexpected pressure, it may crack. When we demand that measurements continue to achieve higher accuracy, or when measurements are carried out in extreme environments, our unit system will be under great pressure if the units of measure were not taken into account at the beginning of the definition. Before the change, countries in the world had spent decades experimenting with the foundations