四极 meaning in Chinese
quadrupole; four poles
Examples
- Nuclear electric quadrupole moment resonance spectroscopy
核四极共振波谱法 - 13 amperes 4 - pole sealed reverse current relays
3a小型密封四极逆流继电器 - 3 phases 4 wires plug socket for ac movable power plant
交流移动电站用三相四极插头插座 - Electrical communication engineering ; four pole plug
电信工程.四极插头