Warning: file_put_contents(/www/wwwroot/ppbbu/5356789.com/cache/2a210b68163e5b82eb093b0afb8d2f55.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/5356789.com/index.php on line 55 radioaltimeter是什么意思，radioaltimeter的翻译，radioaltimeter音标、读音、用法和例句_零六五六深蓝词典
The navigation and avionics are probably from domestic sources.The navigation system consists of radioaltimeter, doppler radar and GPS. 导航和电子设备可能来自国内，导航系统包括无线电测高计、多普勒雷达、GPS。