关于引力（广义相对论）的影响，原文在2.3.6中也确实有提及：

“When practical realizations are compared locally, i.e. in a small space-time domain, effects due to the space-time curvature described by the general theory of relativity can be neglected. When realizations share the same space-time coordinates (for example the same motion and acceleration or gravitational field), relativistic effects may be neglected entirely.”

意思是实际是实现时，当（铯原子钟）与所测量物处在同一个时空坐标时，可以忽略相对论效应（例如加速或引力场）

在测量光速时，非要说一定要考虑引力场对时间单位定义的影响，那纯属抬杠。以上这段话明显是在说定义频率（即秒的倒数）的时候已经忽略了引力场的影响


【
在 qiuzhizhe (求知者) 的大作中提到: 】
: 附件是2019年国际计量大会的原文，其中秒的定义如下
: “The second, symbol s, is the SI unit of time. It is defined by taking the
: fixed numerical value of the cesium frequency ?ν Cs, the unperturbed
: ...................
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修改:qiuzhizhe FROM 210.34.16.*
FROM 210.34.16.*