但是，与固定宽带相比，无线数据传输速度较慢，稳定性也更差，更多只能作为前者的一个补充，而非有效竞争选择。

But wireless data transfer is very much slower and less reliable than fixed broadband; it is more a complement than a competitor.

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实验表明，该算法可以有效地提高PACS中医学图像传输和回放的速度。

The experiment has improved that the proposed method can speedup the medical image transmission and reviewing in PACS effectively.

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在上所述的情况中，太赫兹脉冲的有效传输受限于高损耗，或导波的群速度色散。

In all the above cases, the utility for transport of terahertz pulses is limited by the high loss, or by the group velocity dispersion of the guided waves.

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