In thermal power plants, cracks, after alternative stresses, may occur in fillet welding joints of branch tube seats on header because of incorrect structure of the joints or defects in welds, which lead to leakage and causing unplanned outage.是什么意思_In thermal power plants, cracks, after alternative stresses, may occur in fillet welding joints of branch tube seats on header because of incorrect structure of the joints or defects in welds, which lead to leakage and causing unplanned outage.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句