求翻译：按照厂家所提供的检修方案，维修时将阀门从管线上切割下来，送往检修车间用车床车掉唇焊缝。每个阀门维修时将额外增加2条高中压管道焊缝的切割、恢复焊接和焊缝检验等工作，这样不仅大大延长了维修时间、并且增大了焊缝泄漏的风险、提高了维修成本。是什么意思？

Maintenance program provided by the manufacturers, maintenance valve from the pipeline cut down and taken to a repair shop off the lip weld lathe. Each valve repair additional two high pressure pipe welds cutting, restoration work such as welding and weld inspection, so that not only greatly extend

In accordance with the manufacturer of the service program, service line from the valve cut and sent to the shop with welding lathe turning off the lip. Each valve maintenance will be an additional 2 of the high and medium pressure pipe weld welding and cutting, the restoration work, such as weld in

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In accordance with maintenance programmes provided by the manufacturer, is cutting down on the valve from the pipeline for maintenance, sent to the maintenance workshop lathes used cars off the lip welds. Each valve maintenance will increase an additional 2 high pressure pipeline welding cutting, re

According to overhaul plan which the factory provides, when service cuts the valve from the pipeline, escorts to overhauls the workshop to use lathe Che Diaochun the welded joint.Each valve services when extra will increase 2 high schools to press the pipeline welded joint cutting, restores work and