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[单选题]
表层套管的直径尺寸为()。
A.400mm和324mm
B.168mm和400mm
C.450mm和375mm
D.375mm和324mm
查看答案
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A.400mm和324mm
B.168mm和400mm
C.450mm和375mm
D.375mm和324mm
A.表层套管Φ139.7mm,技术套管Φ244.5mm;油层套管Φ339.7mm
B.表层套管Φ508mm,技术套管Φ339.7mm;油层套管Φ177.8mm
C.表层套管Φ244.5mm,技术套管Φ339.7mm;油层套管Φ508mm
D.表层套管Φ339.7mm,技术套管Φ244.5mm;油层套管Φ139.7mm
A.实际测量的尺寸
B.多次测量的尺寸平均值。
C.实际测量的尺寸减去误差值
D.实际测量的尺寸加上误差值