run-pipe-material,怎样翻译?

run-pipe-material,怎样翻译? Pipe 英语翻译THE PILOT PIPE LEAKED OIL FROM INFORMATION VALVE.AS D-LEVEL LEAKAGE.THE PIPE WAS IMPROPER MATERIAL.A NEW PIPE WAS CHANGED FOR REPAIR. 英语翻译Backfill with selected fill or granular material involving the pipe and until 0.3m of the top of the pipe. Is China National Building Material International( CNBM) the largest manufactuerer and exporter in STEEL PIPE industry in China? China steel pipeIs China National Building Material International Corporation( CNBM) the largerst STEEL PIPE manufacturer in China? Material material 建筑翻译请进：250mm DIA scupper pipe,后面的单位是m run,这是什么单位? 请问有高手知道这里的proving run 该怎么翻译吗? MATERIAL COST FOR PROVING RUN 谢谢了 Pipe schedule pipe insert oxygen pipe two pipes running simultaneously can fill a tank in 2 hours and 40minutes.after the lager pipe had run for 3hours the smaller pipe was also turned on the tank was full 40minutes later how long would it take each pipe a;one to fill the tank run run run run