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pipeline crossing construction
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pipeline crossing construction
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工学
【管道施工】
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pipeline crossing construction
管道穿越施工
管道从河流、湖泊、沟渠等天然或人工障碍物下部通过的工程施工。具有施工工艺复杂、施工难度大、质量要求高的特点,通常将施工工期长、风险大的穿越工程划定为控制性工程,提前组织施工。
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Potosi silver deposit
Potosí Silver Mines
pot plants
potpourri
potroom
Potsdam
Potsdam Astrophysical Observatory
Potsdam Conference
Potsdamer Durchmusterung
Potsdamer Photometrische Durchmusterung
Potsdamer Spektral-Durchmusterung
potsdam gravimetric system
pot-seedling transplanting
potsherd
potstone
potted circuit
potted flowers
potted landscapes in the Palaces of the Qing Dynasty
potter wasps
pottery
pottery and other handmade workshop
pottery and stone figurines unearthed at Yang Sixu’s tomb
pottery camels of the Northern Qi Dynasty
pottery decorated with colour drawings
pottery figures of warriors and horses in Mausoleum of First Emperor of Qin
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