Shortly after the meltdown at Three Mile Island, the U. S. nuclear industry began an ambitious overhaul of its safety practices.
在三哩岛核事故发生后不久，美国就对其核工业开展了一场轰轰烈烈的安全大检查。
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The cooling problems at the Japanese plant raised fears of a repeat of 1979's Three Mile Island accident, the most serious in the history of the U.S. nuclear power industry.