水平基准 meaning in English
horizon reference
horizontal reference
Examples
- Meter above principal datum mpd
主水平基准以上 - Principal datum p
主水平基准 - This area is the site of the boundary control facilities and will be formed at approximately 10m pd
此处设有边界口岸设施，并将建于主水平基准上10米。 - All depths in sea refer to the chart datum which is 1 . 38 metres below the mean sea level
所有水深均以海图水平基准为计算根据，该基准位于平均海平面以下1