理学 动态热机械分析 释 dynamic mechanical analysis; DMA 动态热机械分析 在程序控制温度和一定气氛与交变应力作用下，测量试样的动态模量和力学损耗与时间、温度或频率关系的技术。又称动态力学分析。 理学 计算机组织 释 direct memory access；DMA 直接存储器访问 一种高速输入输出方式。不必中断当前程序，而是在输入输出设备与内存之间直接交换数据。
计算机体系结构 存储系统 释文 direct memory access, DMA 直接存储器访问
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