双中英惯用短语:
| - 双频振荡器 twice frequency oscillator
- 双频无线电系统 two-frequency radio system
- 双频无缝切换 Dual Band Seamless Handovers
- 双频染料激光器 dual-frequency dye laser
- 双频激光器 two-frequency laser
- 双频终端 Dual-band terminal
- 双颚式破碎机 twin-jaw crusher
- 双颚式链条管钳 double jaw pattern chain pipe wrench
- 双额定点泵 two rated points pump
- 双饺拱 two hinged arch
- 双馈多相并励换向器电动机 doubly-fed polyphase shunt commutator motor
- 双馈推斥电动机 doubly-fed repulsion motor
- 双马牌电扇 Double Horse electric fan
- 双驾[四驾, 六驾]马车 carriage and pair
- 双驾[四驾, 六驾]马车 carriage and four
- 双驾[四驾, 六驾]马车 carriage and six
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