This wave of newcomers was being guided by sat nav .
这个新来的浪潮正在由于导卫星导航造成的。
Look at the rounded rectangle that holds this nav block together .
观察一下包裹全局导航块的圆角矩形。
Radios : the 737 has three communication ( comm ) radios and three navigation ( nav ) radios .
无线电系统：波音737具有三套通讯（comm）无线电系统和三套导航（nav）无线电系统。
Mom and dad have their phones , then there 's junior 's music player , the nav device -- you get the picture .
爸妈都有他们的手机，还有长辈们的音乐播放器，还有导航设备你在脑海想想那个画面吧。
A big benefit beyond these savings is that nav canada has revolutionized air traffic control in canada , putting the country decades ahead of united states in air traffic control .
