narrow beam

基本解釋

The technology works by focusing sound into a narrow beam, just like light.
這項技術(shù)的原理是將聲音壓縮成類似于光的窄束。
In the antenna shaped-beam section, introduced narrow beam nulling and wide beam nulling.
在天線波束賦形部分，介紹了窄波束零陷和寬波束零陷。
The transmission signal of a narrow beam irradiated on a flow particle system may fluctuate.
窄光束照射流動顆粒系時，透過率會產(chǎn)生起伏。

One idea is that the energy from some bursts may be concentrated into a narrow beam—though no one yet knows how.
ECONOMIST: An illuminating burst
Walking straight on a narrow beam is frustrating and wrong.
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Moreover, engineers have worked out how to make laser beams more intense by using short lengths of optical fibre to narrow the beam.
ECONOMIST: Monitor

窄波束
Under the mid-latitude mid-range communication,the calculations of channel parameters are taken for different number of transmit antennas at different time and the serving region size is calculated for certain narrow beam.
以中緯度地區(qū)的中距離通信為例,計算了不同時刻使用不同發(fā)射天線數(shù)時的信道參數(shù),并計算了特定窄波束的服務(wù)區(qū)間范圍。
物理學(xué)
窄波束
窄束
細射束
窄射束