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

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
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

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
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 significant figures with the speed of light in empty space.
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