| 1. | All elevations are relative to chart datum
所有标高均相对于海图基准面。 |
| 2. | Applies only to chart data regions
仅适用于图表数据区域。 |
| 3. | Chart datum for inland navigation
内陆航行图深度基准面 |
| 4. | Working with chart data regions
>使用图表数据区域 |
| 5. | Chart datum : the level to which soundings or tide heights are referenced
海图基准面：测量水深或潮水高度的基础高度。 |
| 6. | Above chart datum
海图基准面以上 |
| 7. | 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 |
| 8. | The tidal predictions are for victoria harbour and the tide heights are in metres above chart datum
潮汐预报是以维多利亚港为准。潮水高度为海图基准面以上高度，以米为单位。 |
| 9. | The tidal predictions are for victoria harbour and the tide heights are in metres above chart datum
潮汐预报是以维多利亚港为准。潮水高度为海图基准面以上高度，以米为单位。 |
| 10. | Tide height is in metre above the chart datum which is 0 . 146 m below the hong kong principal datum
潮水高度为海图基准面以上高度，以米为单位。香港的海图基准面在主水平基准面下0 . 146米。 |
