有些管路舾装在制造小分段时就开始了也叫做分段预舾装
Some pipe outfitting begins when making small sections and is also called section pre-outfitting
以上为机器翻译结果，长、整句建议使用 人工翻译 。
有些管路舾装在制造小分段时就开始了，也叫做分段预舾装；
Some piping outfitting is done when building sub-blocks, that is, on-block outfitting;
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