dual-angle steel combined section
dual-angle ultrasonic sensor
wide-angle dual combined digital camera
action-angle-angle transformation
phase angle {angle of phase difference}
Dual Channel and Dual Closed-loop
dual in and dual out coal mill
dual light source and dual output
dual part of dual quantity
dual peak dual wavelength method
dual- phase dual- storage pseudo- parallel
dual qualitative and dual quantitative similarity method
Dual ring dual direction
Dual tower and dual column
Dual-bus Dual-subsection
Dual-channel and dual-electrode electrochemical detection
Dual-column-dual-detector
dual-input and dual-output