D speed protection is a key technology of the Operation Control System (OCS) for high speed Maglev transportation.

二维速度防护是高速磁悬浮交通运行控制系统(ocs)的关键技术之一。

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What it means is if you'd release a rock at that location one second before with a certain speed that we can calculate, it would've ended up here with precisely the position and velocity it had at the beginning of our experiment.

它的意义在于,若在该处以特定速度抛出一个物体,这个速度可通过计算得到,一秒之后,物体会运动至我们设定的起点,并且速度为我们设定的初速度

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But if you are purchasing a superyacht you would want a vessel that was transglobal and you'd want a reasonable speed.

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Apps can randomly crash and the OS doesn't always respond to my inputs with the speed I'd expect of a quad-core device.

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Now he knew he'd be travelling at the speed of light and yet he correctly surmised that he would see everything else rushing past him and he would feel like he was standing still.

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