Gas has been getting out of the main pipe, which burst in the severe cold.

煤气从在严寒中冻裂的主管道中泄漏出来。

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Welding seam should be numbered according to pipeline medium set, in principle, main pipe prior to branch pipe.

焊缝编号应根据管线介质流向进行编号，原则上应先主管后支管。

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The flow rate distributor distributes fluids in a main pipe to all holes, or converges fluids from all holes to a main pipe.

流量分配管是将主管流体分配到各个孔，或者是流体由各孔汇入主管的流动过程。

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Thad Allen, the government's point man in the region, said BP has determined there are three sections of drill pipe that need to be removed -- a main pipe and two shorter ones.

CNN: STORY HIGHLIGHTS

The external hull will be blasted and painted, hatch covers will be renewed as well as work on the main engine and pipe work.

BBC: Coal ship repairs return to Tyneside yard

Part of a main road has collapsed in Surrey leaving a car submerged in water after a mains pipe burst.

BBC: Woking A320 collapses after Veolia water mains burst