When the Nb con- tent exceeds 1.5 wt%,the eutectic NbC carbides on grain boundaries become lamellar and the amount of M_(23)C_6 carbides within grains decrease significan- tly,and therefore the creep rupture strength of the alloy decreases.是什么意思_When the Nb con- tent exceeds 1.5 wt%,the eutectic NbC carbides on grain boundaries become lamellar and the amount of M_(23)C_6 carbides within grains decrease significan- tly,and therefore the creep rupture strength of the alloy decreases.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句