Hired underground piping engineering firm to perform ultrasonic underground piping integrity evaluations of all underground radioactive piping.
聘请地下水管道工程师组织就所有地下放射性管道进行超声波地下管完整性评估。
Radioactive tritium has leaked from three-quarters of U. S. commercial nuclear power sites, often into groundwater from corroded, buried piping.
美国四分之三的商业核电站均存在放射性氚泄露，通过埋在地底下的被腐蚀的管道进入地下水。
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