[新英汉石油技术词典] doubling

[专利英汉词典] doubling

[农牧林英汉词典] doubling

[冶金英汉词典] doubling

[地质英汉词典] doubling

[海运英汉词典] doubling

[生物学英汉词典] doubling

[电信英汉词典] doubling

[石油英汉词典] doubling

[纺织英汉词典] doubling

[能源英汉词典] doubling

[航海英汉词典] doubling

[船舶英汉词典] doubling

[英汉计算机词汇] doubling

[轻工业英汉词典] doubling

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