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coolidge tube
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核科学技术词汇手册
coolidge tube
热阴极电子射线管
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natural angular frequency
natural antenna frequency
natural antibody
natural antibody
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natural approach
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natural area
natural area
natural asphalt
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natural attenuation quantity of noise
natural attitude
natural attraction
natural attraction
natural background radiation
natural background radiation
natural basis
natural basis of human history
natural beauty
natural beauty
natural beauty
natural bed
natural bed
natural biodegradable polymer
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