双管双管板换热器
double tube double tube-plate heat exchanger
分条阳极双叠层电离室
Anode striped twin-fold ionization chamber
anode striped twin-fold IC
激光二极管双端抽运
laser diode double-end-pumped
激光二极管双端面抽运
laser diode dual-end-pumped
绝缘门极双极晶体管
IGBT
insulated gate bipalar transistor
绝缘门极双极晶闸管
Insulated gate bipolar transistor
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
双极双连开关
double pole double throw switch