books water level drop
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# level drop
# water level cycle
# static water level
# level ranged
# High Level Observatory
# level control valve
# Measure the level in the tanks
# General sea level changes
# General level changes
# Lake water level dropping
# About the water level in the Fatimid period
# About the water level rise above the sea
# ground water level
# Pressurized water level lines
# average water level mark
# Water level chart
# water level gauge
# The current water level
# lower water level
# water level in a river
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هبوط المنسوب المائي (Info)
هبوط المنسوب المائيّ:- الفرق بين الارتفاع الأول للسطح المضغوط للماء والوضع الذي يصل إليه بعد الضخ من البئر (المعجم الموحد لمصطلحات الهندسة المدنية)
