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一、前言在船体建造过程中,有许多焊接接头因受到各种条件的限制,不能把工件翻转,所以只能用仰位置的碳弧气刨和手工
I. Foreword During the construction of the hull, there are many welded joints that can not be turned over due to various conditions, so they can only be used with carbon arc gouging and handwork