Present aircraft ALCS (automatic landing control system), usually employing PID control, appears unable to meet the high landing precision required by aircraft with long flexible wings.是什么意思_Present aircraft ALCS (automatic landing control system), usually employing PID control, appears unable to meet the high landing precision required by aircraft with long flexible wings.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句