yán jiū / rén yuán / tiáo zhěng / le / wú xiàn diàn / shè bèi / de / pín dài / yǐ / jiǎn shǎo / xìn hào / zhī jiān / de / gān rǎo研究人员调整了无线电设备的频带,以减少信号之间的干扰。The researchers adjusted the frequency band of the radio equipment to reduce interference between signals.