而对地下水位以下的真空度测点，真空表读数无意义。

Therefore, when vacuum data were measured above groundwater level, the reading of vacuum gauge reflected the wat...

youdao

而对地下水位以下的真空度测点，真空表读数无意义。

Therefore, when vacuum data were measured above groundwater level, the reading of vacuum gauge reflected the wat...

youdao