The processing capacity of the holes in pipe is about 40% of the processing capacity of the boiler drum and collectingheader in boiler fabrication.
工业锅炉制造中管孔加工量约占锅筒集箱工作量的40%，操作者失误即可能造成该锅筒报废。
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Another advantage of combining this approach with collecting PHP functions into modules is that you can easily standardize the header and footer for your PHP pages into a separate module.
In the boiler's inspection, some fillet weld's crackles were found on the same side of the header of steam collecting channel for some boilers that had the same style.