报道了某核动力系统蒸汽发生器，因管束的应力腐蚀破裂而发生严重泄漏事故的原因和规律。
The reasons and regularity of pipe stress corrosion cracking of some nuclear-powered steam generator was summarized, which caused serious leaking accident.
对核电厂来说，蒸汽发生器传热管破裂(SGTR)事故发生的概率比较高，世界上现有核电厂发生过此类事件。
The probability of steam generator tube rupture (SGTR) during the operation of a nuclear power plant is high; there were some SGTR incidents happened during operating plants in the world.
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