求高手翻译物理长句!
问题描述：
求高手翻译物理长句!
The measured gamma ray speed relative to the laboratory agreed in this case to five significant figures with the speed of light in empty space.
后半句不知道怎么翻译了
答
这一次,在实验室里测量出来的gamma 射线的速度与在真空空间里的光速（文献上的标准光速）相比,达到了5位有效数字的吻合.The measured gamma ray speed relative to the laboratory agreed in this case to five sign...significant在这里是强调的意思吗？不是，significant figure/significant digit就是国内所谓的“有效数字”比如 80800是3个sifnificant figures0.07554是4个significant figures