By reducing the amount of computation done on board the device, caching speeds things up and saves battery life in the process.

通过减少设备上的计算量，高速缓存会起到加速的作用，并且还会延长电池寿命。

youdao

It would be nice, therefore, if all the on-board paraphernalia of propulsion and control could be dispensed with, leaving an unencumbered device that is still capable of directed flight.

所以，如果能免除这些促进器和中控装置的所有笨重装备，只留下可以准确飞抵目的地的装置，那该有多好呢。

youdao

Providing an on-board power supply is difficult, however, so he is investigating the use of external magnetic fields to power the device.

然而，倘若板载动力装置很难实现的话，他正在研究利用外部磁场给器件提供动力的途径。

youdao

This is a game where you get a little plastic device, it's got 15 plastic numbers on it and one hole in this little plastic board and you can move those numbers up, down, left to right, and the goal is to take what's a random assortment of tiles and arrange them in numeric order and that's one of these little things you can play sort of absentmindedly.

在这个游戏中，你会拿到一个可塑的装置，上面有15个数字和一个孔,你可以将数字上下移动，左右移动，目标就是,拿到一个随机的组合后,将其按数字顺序排列,这个你可以随便玩玩。

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However, all of the major operators are on board to support the device.

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Now, however, the government of Singapore is reportedly on board, and the device is being eyed by several U.S. airline, package transportation and retail companies.

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John Kestner and David Carr created Twine, a 2.5 inch-square device with on-board temperature and vibration sensors, as well as an expansion connector for other sensors, such as moisture sensors and magnetic switches, all tightly integrated through WiFi with a cloud-based service.

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