双二极管激光器的双稳态工作
bistable operation of double diode laser
双管双管板换热器
double tube double tube-plate heat exchanger
双管双层分采完成井
two-tubing dual completion well
双管双动岩芯管
double tube double swivel barrel
双管双正激变换
Two transistor two forward converter
DNA的双链特征
double-stranded characteristics of DNA
UIC双管制动系统
UIC double-pipeline brake system
闭的双侧曲面
closed orientable surface
闭式双管异程系统
Closed-loop double pipe direct return system
并联内插管双室扩张式
Parallel expansionary insert-pipe inside of two-room equivalent circuitry