Mean High Water

mean high water interval

mean high water level

mean high water spring

Mean High Water Springs

Higher High Water

Higher High Water HHW

Mean Higher Low Water， MHLW

mean water depth

mean water level

above high water mark

dredged clay with high water content

dredged clays with high water content

drilling with high water level and large elevation angle

extending of high water level

Extra High Water Cut Stage

extreme high water level

extremely high water co ntent

high water