双中英惯用短语:
| - 双极电动机 bipolar electric motor
- 双极电机 bipolar machine
- 双极绕组 bipolar winding
- 双极装置 bipolar dcvice
- 双极装置 Bipolar Device
- 双极诱导法 bipolar derivation
- 双极闸刀开关 two-pole knife switch
- 双架桥式抓斗起重机 double-beam bridge type grab crane
- 双架桥式起重机 double-beam bridge type crane
- 双架鎚 Hammer, double frame
- 双架鎚 Double-frame hammer
- 双柄管子钳 double handle pipe wrench
- 双柄钻 two spindle drill
- 双柱刨床 double column planer
- 双柱可倾压力机 double column inclinable press
- 双柱坐标镗床 double column jig boring machine
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