Résultats (
Anglais) 3:
[Copie]Copié!
The surveyor guide the boat, with the help of its topographic device on earth and the prism installed on the boat by communicating with the responsible of the plunger to the aid of the two walkie-talkie, up to the point of poll .
once on the point, the plunger casts the spear, to the water , which is connected to the pump by a firefighter Hose 30m , when the plunger is at bottom , it gives a signal,By pulling on the hose, turn on the pump , the plunger takes the launched vertically in the sand and the guide are pushing in the sand up to the substratum , once the bottom is rocky key by the head of the spear, the plunger reads the graduated part of the launched to know the height of sand on this point, if the point is directly rocky , the plunger the declared ,A faith the survey of this point is finishes, the plunger mounted with its equipment on the barge and is re-moved by always being guided by the surveyor on the next point.
En cours de traduction, veuillez patienter...
