... 公称通径 Nominal Diameter（mm） 钢管外径 Pipe Outside Diameter（mm） 公称压力 Nominal Pressure （Mpa） ...
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我爸爸回来,我才去睡觉 » My father came home, I can only go to sleep 管道外径 » Pipe outside diameter 在新的学期我的计划是 » In the new semester is my plan ..
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... Branch Pipe Outside Diameter 支管外径 PIPE OUTSIDE DIAMETER 管子外径 Air pipe inner diameter 气管内经 ...
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To guarantee the inside diameter of a pipe or other cylindrical tool by pulling a cylinder or pipe (rabbit) of known outside diameter through it.
确保管子或其它圆柱形工具的内径合适，通过拖动已知外径的圆柱体或管子(清管器)穿行其中。
The Out-of-roundness is not more than 2% of the outside diameter of the pipe at any point.
弯管圆度应保证弯管上任何一点的外部直径不得大于标准直径的 2%。
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