The erosion-abrasion, which is one of the main reasons of the leakage of the power-station boiler-conduit-pipe 'contra-flow heating-surface, accounts for 75% or more of the accidents of the boiler.
冲蚀磨损是电站锅炉对流受热面管道泄漏的主要原因之一，占到锅炉事故的75%以上。
2
In a skyscraper, virtually every pipe and electrical conduit is designed (though the positions of the walls sometimes aren't!)
事实上，一幢摩天大楼里的每一根管道和电缆管都要设计(尽管有时不设计墙的位置！)
3
Where this facility is not available, individual tube runs shall be supported continuously in channel , angle iron , conduit or pipe.