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English AbstractTribological PropertiesVenturi TubeTribologic PropertiesConstructional ParametersNatural Gas PressureInsulation LiningElectronic TransducerLubricating Materialsthe Reliability AssessmentPulsating VoltageTorque TransducerWear CoefficientWorking ParametersElectromagnetic InductionUsed EquipmentNeedle BearingMeasurement DevicesReinforced PlasticsState Parameters