碳纳米管组成天线，用来捕获并聚焦光的能量，这就意味着更加小体积而高效电池组件将在不久的将来诞生。
Such nanotubes could form antennas that capture and focus light energy, potentially allowing much smaller and more powerful solar arrays.
实验结果和多例临床应用证明：螺旋型天线稳定、高效、安全，在临床上用有着广泛的应用前景，建议螺旋型天线代替单极子天线作为研究方向。
Experiment results and many clinical examples suggest that the helical microwave antenna is a dependable, stable, safe and efficient one, and has a wide applicant future in clinical practice.
不足之处是，他们只是适度相比，鞭子或一个精心设计的PC板天线高效电磁辐射。
The downside is that they are only moderately efficient EM radiators compared to whips or a well-designed PC-board antenna.
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