The type of wave that would carry an extraterrestrial civilization's signal would be oriented, or polarized, in one of two ways.
携带地外文明世界信号的那种类型的波可以用两种方法之一来确定其方向或偏振。
2
The paper presents two kinds of the straight typepolarized magnetic system that can be used in contactor, breaker and hybrid electrical appliance, and analyzed the working principle.
GQ-relay. Ultra-small package flat polarized relay. Operating function single side stable. Coil rating 12 V DC. Tape and reel packing. Surface-mount terminal a type.