双盘收线机
dual-disc take-up machine
自动收缩式线盘
automatic collapsible drum
nRF905无线收发芯片
wireless transceiver nRF905
财务内部收收益率
interior financia benefit rate
超导接收线圈
superconducting receiving coil
大气吸收线参数汇集纪录
atmospheric absorption line parameters compilation
单片无线收发芯片nRF401
chip RF transceiver nRF401
镀锌收线机
galvanized wire-receiving machine