[新英汉石油技术词典] toroidal core

[专利英汉词典] toroidal core

[广播英汉词典] toroidal core

[海运英汉词典] toroidal core

[电信英汉词典] toroidal core

[电子工程英汉词典] toroidal core

[石油英汉词典] toroidal core

[经贸英汉词典] toroidal core

[航海英汉词典] toroidal core

[英汉计算机词汇] toroidal core

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