Make the sentence grammatical: From 1951, when the first nuclear power plant generated electricity, the technology of nuclear power has become more efficient and safety.
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The first nuclear power plant in, the first nuclear power plant in, the first nuclear power plant in, the first nuclear power plant in, the first nuclear power plant in, the first nuclear power plant in, the first nuclear power plant in, the first nuclear power plant in, the first nuclear power plant in, the first nuclear power plant in, the first nuclear power plant in, the first nuclear power plant in, the first nuclear power