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自物理世界的基本常数首次精密定值四年以来,现已可能作出准确度超过百万分之一的许多有重大意义的测量。例如,当应用激光测定的光速值来确定地球与月球之间的距离时,误差将不超过15厘米。这项经改进的测量准确度与“基本常数”的严格考察和求值有关,其中一些关键数值确定了物质
Since the first precise calibration of the fundamental constants in the physical world for four years, it has now been possible to make many significant measurements with accuracies in excess of one part per million. For example, when applying laser-determined light speed to determine the distance between the Earth and the Moon, the error will not exceed 15 cm. This improved measurement accuracy is closely related to the rigorous investigation and evaluation of “basic constants ”, with some of the key figures defining the material