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accident source
nucl.pow. 事故源
accident source The cause or origin of an unexpected occurrence, failure or loss with the potential for harming human life, property or the environment
environ. 意外发生源 (出乎意料的事件、失败、或者损失的产生源,此类事件有伤害人类生命、财产或者环境的潜在可能。)