高精度测量几何量，如角度、长度等的测量结果都是标准环境参数条件下的值，其中的水蒸气压(湿度)要求是1。

Water vapor pressure which is also called humidity, one of the standard environment parameters, should equal to 1.

youdao

高精度测量几何量，如角度、长度等的测量结果都是标准环境参数条件下的值，其中的水蒸气压(湿度)要求是1。

Water vapor pressure which is also called humidity, one of the standard environment parameters, should equal to 1.

youdao