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边际比率
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边际比率
marginal ratio
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test signal oscillator
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tests of profitability
tests of welded vessels
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test specimen tube
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test station truck
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科学参考收录了1248194条科技类词条,基本涵盖了常见科技类参考文献及英语词汇的翻译,是科学学习和研究的有利工具。
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