换: exchange; barter; trade极: I the utmost point; extreme式: type; style换极式交流发电机: pole change type ac generator换极: change poles; pole changing换极器: changer pole; pol-change; pole changer; pole reverser; polechanger电池换极: battery reversal换极电动机: pole change motor; pole-change motor换极继电器: pole changing relay; pole-changing relay换极开关: polarity reversing switch; pole changer switch; pole changing switch; pole reverser; pole-changing switch换极连续波: anodic-cathodic wave; anodic-cathodio wave换极马达: pole changing motor换极起动器: pole changing starter交换极化: exchange polarization转换极性: polarity of translation; reverse两极式: two plate三极式: threepole双极式: bipolar system凸极式: saliency; salient pole type; salient-pole电极式锅炉: electrode boiler多极式阳极: multiple type anode复数的极式: polar form of complex number积极式开口: positive shedding极式投影网: polar net极式装置: polar mounting
