Santa 's trip takes in all continents and all time zones . Silverberg says his sleigh is equipped with an onboard sleigh guidance system .
圣诞老人的足迹遍布所有大陆和所有时区，silverberg说，他的雪橇配备了一个雪橇板载导航系统。
Messenger 's onboard magnetometer could help sort that one out .
信使号的机载磁力探测器可以帮助解决其中部分问题。
Onboard computers handle energy management .
车载电脑控制这种能源转换。
Shortly after 8:14 a.m. , onboard flight 11 , two flight attendants called american airlines and said that hijackers had stabbed two other flight attendants and a passenger .
