通过光纤传输的信号会变弱，因此信号必须通过一种称为再生器的设备才能传输到更远的地方。
Signals running through fiber-optic cables deteriorate, and so the signals must be run through a piece of equipment called a regenerator before being transmitted farther.
医生已经在试验运用触觉信号来提高伤口愈合及再生的方法。
And doctors are already experimenting with ways of using tactile cues to improve wound healing and regeneration.
这种动荡是一个信号，折射出中国疾速进军可再生能源领域所造成的更大范围的破坏。
The turmoil is a sign of the wider disruption caused by China's breakneck drive into renewable energy.
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