A30mB60mC90mD120mEH>150mm,轴线竖向投测允许偏差≤±50mm
B60mC90mD120mEH>150mm,轴线竖向投测允许偏差≤±50mm
C90mD120mEH>150mm,轴线竖向投测允许偏差≤±50mm
D120mEH>150mm,轴线竖向投测允许偏差≤±50mm
EH>150mm,轴线竖向投测允许偏差≤±50mm
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