dipole

• 指一对大小相等、符号相反且相距很近的电荷或磁极；也指由两根导体构成、中间与传输线相连的天线。

A noun referring to a pair of equal and opposite electric charges or magnetic poles separated by a small distance, or an antenna consisting of two rods connected to a transmission line at the center.

1. Electric or magnetic dipoleC1formalscientific

   A pair of equal and opposite electric charges or magnetic poles separated by a small distance, creating a field.

   电偶极子或磁偶极子

   • The water molecule is a classic example of an electric dipole.
   • A magnetic dipole can be created by a small loop of current.
   • The dipole moment is a vector quantity that describes the separation of charges.

2. Dipole antennaC1formaltechnical

   An aerial half a wavelength long consisting of two rods connected to a transmission line at the center, used for transmitting or receiving radio waves.

   偶极天线

   • The radio station uses a half-wave dipole antenna for broadcasting.
   • A dipole is one of the simplest and most widely used types of antennas.
   • The engineer adjusted the length of the dipole to match the frequency.

   同义词dipole antenna