Oil pipeline parallel section construction technology

The invention belongs to the field of oil pipeline construction, and particularly relates to an oil pipeline parallel section construction process which comprises the following steps: firstly, surveying and setting out before construction to ensure that a pipeline pit slot is straight, and then digg...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	YAN QI, XI ZHIQIANG, XIA BO, MENG KAI, LIU CHANG, WAN RUGANG, SUN HUI, WANG XIANWEI, BI ZHONGLIANG, SHAO HAORAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CLEANING CLEANING IN GENERAL MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS PERFORMING OPERATIONS PHYSICS PREVENTION OF FOULING IN GENERAL TESTING TRANSPORTING
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