clock-doubling 时钟加倍技术...doubling calender 重合砑光机...doubling n.加倍,双重,折迭,重合,折...culture doubling time 倍增时间...doubling dilution 二倍稀释...frequency doubling 倍频...doubling-up method "加档"法,"叠式"工作法...doubling register 倍加寄存器...frequency-doubling transponder 倍频询答机...doubling machine 层布贴合机...
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