Dual DSP双DSPdualadj.双重的；成双的n.双数dual shape core dispersion-shifted fiber双层芯色散位移光纤dual slope analog-to-digital converter双斜率模-数转换器dual energy scanned projection radiography双能扫描投影X线摄影(术)dual-channel electroacoustic test system双通道电声测试仪dual photomultiplier scintillation counter双光电倍增管闪烁计数器dual-frequency precise point positioning双频精密单点定位dual economic structure's conversion modeldual frequency induced polarization method双频激电法dual quadratic rotary combinational design二次旋转回归实验设计dual-wavelength speetrophotometry method双波长法