The key development lies in the ability of the sphere, an optical device, not only to remain invisible itself but to slow light.
关键在于光纤球功能的开发，一种光学设备，不仅要保持自身的不可见性，还要能减缓光线。
When the system won't let you unmount a device because that device is busy, examining every process on the system is both irritating and slow.
在由于设备忙系统不允许删除它的情况下，检查系统上的所有进程是一个很烦人、很缓慢的过程。
Who knows. What I do know is that it’s far too slow as a consumer device.
唯一我知道的就是，作为一款消费型设备，它的速度完全不够格。
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