double fan双风扇,二联通风机
doubleadj.双重的;成双的;两倍的v.翻一番;使 ... 加倍n.两倍;双份
double reheat power generation sets二次再热机组
double crystal X-ray spectrometer双晶体X射线光谱计
double-focusing mass spectrometer双聚焦质谱仪
double cotton-covered copper wire双纱铜包线
Double differential current bridges双桥差
double-ended open-jawed spanner双端开口爪形扳手
Double-Gamma scintillation models双Gamma模型
double-row spherical ball bearing双列球面球轴承