英语翻译全句为Once both parties of communication receive the spectr

英语翻译
全句为Once both parties of communication receive the spectrum
sensing information obtained by the other party,they logically ’AND’ the white spaces each of them has detected separately.一起翻译更好!
其实我就不知道AND怎么翻译，可能是逻辑运算。这句话是英文文献System Design for Cognitive Radio Communications中的一句话。