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首页 - 英汉词典 - I字开头的单词或词组 - improvement research

英语解释

improvement research

汉语翻译

【经】改进研究, 革新研究

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soil improvement wideband improvement transit improvement trade system improvement time self-improvement reserve for improvement on property pulse-improvement threshold profit improvement plan and performance evaluation product improvement performance improvement noise-improvement factor method improvement program

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