double PID双PIDdoubleadj.双重的；成双的；两倍的v.翻一番；使 ... 加倍n.两倍；双份double labelled compound双标记化合物double reference surface双参考面double cassette recorder双卡录音机double-heading systems双科目体系Double-banded Graytailn.双斑灰尾雀double-beam photometer双束光度计double-ended ball mill双头球磨机,双锥滚筒式球磨机,双流式球磨机double auction mechanism双向拍卖机制double resonance circuit双谐振电路double overcoating cloth双重厚大衣呢