... narrow-basephototransistor窄基底光电晶体管 narrow-beam强指向性射束 narrow-beamabsorptioncoefficient窄束吸收系数 ...
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... 窄束几何条件：narrow beam geometry 窄束：narrow-beam 窄共振无限质量近似：narrow resonance infinite mass approximation ...
基于14个网页-相关网页
narrow beam [核] 窄射束 ; 狭窄的光线 ; 窄束 ; 窄波束
Narrow beam condition 窄射束 ; 窄束状态
narrow beam injection laser 窄束注入式激光器 ; 窄束注入激光器 ; 窄束
narrow beam geometry 窄束几何条件 ; 细射柱几何 ; 窄束几何
narrow-beam sounder 窄束测深仪
multi-narrow beam sonar 多窄波束声纳
narrow beam echo sounder 窄束回声测深仪
narrow-beam absorption 窄束吸收 ; 细射柱吸收
Both the theoretical study and the calculation results show that the gain of the power ratio of dominant path to the others and the coherence bandwidth can be dramatically increased in the shortwave communication with narrow-beam.
理论分析和计算结果均表明:在短波通信中使用发射窄波束,主路径相对其他路径的功率比值增益以及信道相干带宽都会显著提高。
参考来源 - 采用发射窄波束的短波通信信道特性研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The technology works by focusing sound into a narrow beam, just like light.
这项技术的原理是将声音压缩成类似于光的窄束。
For this effect, we're going to use a very soft, narrow beam, so go under the Style pop-up menu at the top of the dialog (this is where the presets are) and choose Flashlight.
为了这个效果我们需要用到一个很窄的柔化光束。所以在对话框顶部的样式选择菜单中点选手电筒效果。
In other words, ultrasound essentially travels in a very narrow beam — this makes it great for focusing the waves toward a desired area, but not for actual aural comprehension.
换言之，基本上超声波的传播声束极窄，这非常有利于将声波集中至指定地点，但对实际听力则无所助益。
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