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English to Russian translations [PRO] Tech/Engineering - Engineering (general)
English term or phrase:bell
после бурения скважины под спуск электрода заземления производится каротаж, а затем начинается самое интересное:
The resistively log would then be completed by raising the anode at 1.5 metre intervals and recording the voltage and current. The resistance at each depth is then used with Graph #1 to calculate the soil resistivity in ohm-cm. A copy of each log shall be presented to XXX Company.
Once the resistively log has been completed the 200 mm diameter ***bell*** and spigot plastic casing shall be installed in the hole. Each section of the casing shall be lowered in with the ***bell*** end up. this casing is to extend a minimum of 58 metres into each hole. The 300 mm diameter surface casing is to be installed over the well casing pipe.