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单项选择题
A.井架主体架的下部第一层水平连杆上
B.井架主体架的下部第二层水平连杆上
C.井架主体架的上部第一层水平连杆上
D.井架主体架的上部第二层水平连杆上
单项选择题
A.0.5~2.5MPa;0.07~0.1MPa
B.0.5~2.5MPa;0.7~1.0MPa
C.0.05~0.25MPa;0.7~1.0MPa
D.0.05~0.25MPa;0.07~0.1MPa
单项选择题
A.0.5%~1.2%
B.0.6%~1.0%
C.0.5%~1.0%
D.0.5%~1.2%
单项选择题
A.宜为2~4m,不大于3.5mm
B.宜为2~4m,不小于3.5mm
C.宜为3~5m,不小于3.5mm
D.宜为3~5m,不大于3.5mm
单项选择题
A.不宜超过1.2m,不应超过3.5mm
B.不宜小于1.2m,不应小于3.5mm
C.不宜小于1.2m,不应超过3.5mm
D.不宜超过1.2m,不应小于3.5mm
单项选择题
A.≤1.2m,≥30mm,≤150mm
B.≤1.2m,≥30mm,≥150mm
C.≥1.2m,≤30mm,≤150mm
D.≥1.2m,≥30mm,≤150mm