emanation prospecting

例句：

1. 1.The light emanated from thesource.
   光线从源头发出。
2. 2. Theradio waves emanatedfrom the antenna.
   无线电波从天线发出。
3. 3. The scent of the perfumeemanated from the bottle.
   香水的香味从瓶子里散发出来。