International Commission on Irrigation & Drainage Commission Interationale des Irrigation et du Drainage

Multilingual Technical Dictionary (MTD)
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Term No.Term Name/Term DescriptionAction
2878
Gate seal
Leakage preventing material or device provided at the sides and bottom of the gates, it can be at the top also when the gate is submerged under water......
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6253
Gate stroking
A computerized, centralized control method for canals, based on continuous gate motions or a series of discontinuous gate motions that produce predetermined variations in discharge or water levels. .....
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3402
Gate transitions
Closed conduit transitions provided on both sides of the gate recess or chamber. Similar are valve transitions.
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2991
Gate valve
It is a shut-off device used in a pipe. The pipe is closed with a wedge-shaped plug or gate that can be moved up and down, perpendicular to the pipe axis......
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3447
Gated-offtake regulator
An offtake regulator provided with gates, stoplogs, drop bars, etc.; or a combination of them.
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2231
Gates
A device to stop or release water through a passage. For various types see sub-head V.4 `Gates and valves`.
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8166
Gateway
a communications device/program that passes data between networks with similar functions but dissimilar implementations. Today, the term ‘router’ is used in place of the original term ‘gateway’......
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1178
Gauge datum
The elevation of the zero of a staff gauge or other indicator of water depth above a certain reference level.
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1182
Gauge line
The line across a channel passing through a given gauge.
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1183
Gauge line pillars
The structural landmarks fixing the position of the gauge line.
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1190
Gauge well, Stilling well, Float well, or Recorder well
1 – A chamber or a compartment with closed sides and bottom, provided with an inlet or inlets communicating with the river or canal. Its purpose is to dampen waves or surges in the parent stream while permitting the water level in the well to rise and fall with the fluctuations of the level in the river or canal. 2 – See 2479......
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1181
Gauge, or Gage (USA)
An instrument, contrivance, graduated scale or other device installed at a gauging station for observing or recording the stage of a stream......
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1173
Gauging station
A selected site on a stream equipped and operated to furnish basic data from which systematic records of discharge may be derived......
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3456
GEC-Alsthom regulator
A semi-module evolved by the Neyrpic Laboratories (Grenoble) that has an inclined plate or check plate designedly located a little downstream from the crest (illustrated)......
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3286
Gel
A jelly-like material formed by coagulation of a colloidal liquid or soil.
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5997
Gelatin dynamite
A jellylike explosive, entirely waterproof, made by dissolving nitrocotton in nitroglycerin.
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7066
Genecology
The study of the genetical composition of plant populations in relation to their habitat.
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8628
General appraisal planning
Broad evaluation of alternative measures for meeting hypothesized goals and objectives, with recommendations for action plans and programmes by specific agencies or entities......
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9315
General Equilibrium Analysis
An approach that considers simultaneously all the markets in an economy, allowing for feedback effects between individual markets......
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3117
General movement of bed load
The stage of movement when all sediment sizes of the bed material are in motion and the movement is strong enough to develop bed configuration......
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9058
General provisions (specifications)
Provisions in the specifications that apply to the work as a whole.
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8167
General Purpose Interface Bus (GPIB)
A BUS specification standard (IEEE 488) for controlling peripheral devices.
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2621
General shear failure
A failure caused by the impairment due to excessive movement of the structure resting on the soil that has mobilised its ultimate strength along the potential surface of sliding......
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6835
Genus (pl. Genera)
Category of biological classification comprising a group of similar species.
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3159
Geo-textile lining
Any fabric or textile (natural or synthetic) used in conjunction with soil, foundations, or rock in the lining of canals......
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