A .0.4m
B .0.5m
C .1m
D .1.5m
[单选题]塑料管道与地下高压石油、天然气管平行净距为()m?A .5mB .8mC .10mD .15m
[单选题]塑料管道与地下热力管交越净距为()m?A .0.1mB .0.15mC .0.2mD .0.25m
[填空题] 塑料管道与地下排水管交越净距为()m?
[单选题]塑料管道与地下给水管(500mm以上)交越净距为()m?A .0.1mB .0.15mC .0.2mD .0.4m
[填空题] 塑料管道与高压石油、天然气管间平行时及交叉时的最小净距为()米及()米。
[单选题]塑料管道与燃气管(压力小于300kPa)交越净距为()m?A .0.4mB .0.5mC .0.1mD .0.3m
[单选题]塑料管道与排水沟交越净距为()米?A .1mB .0.75mC .0.5mD .0.65m
[单选题]塑料管道与燃气管(压力300kPa~800kPa)交越净距为()m?A .0.4mB .0.5mC .0.1mD .0.3m
[单选题]塑料管道与地下热力管平行净距为()m?A .1mB .1.5mC .2mD .2.5m
[单选题]塑料管道与地下给水管(管径300mm--500mm)交越净距为()m?A .0.1mB .0.15mC .0.2mD .0.3m