1.Isilinganiso sokucindezela sakhiwe ngesokhethi, ukudayela, icala, ishubhu ye-bourdon, ukunyakaza, isikhombi.Lapho umoya ocindezelayo ungeniswa ku-bourdon tube, i-bourdon tube izonwetshwa, khona-ke ukunyakaza kwegeji yokucindezela kuzophendulwa, lapho kukhomba khona ekugcineni kuzokhomba inani lokucindezela.2.Pressure gauge movement ihlukaniswe yaba obverse...
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