在自由空间量子密钥分配中，单光子源采用具有泊松分布的高度衰减激光脉冲，量子密码术协议采用BB 84和B92协议。
Highly attenuated laser pulses with Poisson distribution are used as single-photon sources and the BB84 and B92 protocols are used for free-space quantum key distribution.
当面临几个强大的信号，所有信号衰减的广泛耐药(包括DX)内的高度。
When confronted with several strong signals, the XDR attenuates all signals (including DX) to a high degree.
高度不匹配之电源与负载抗，传输线上多重反射之衰减时间很长。
High source and load reflections require a long time for multiple reflections to decay.
推导了雾、霾、云、大气的衰减随高度变化的规律，给出了云层激光回波特性的计算公式。
We get rules of the attenuation of fog, cloud, haze and atmosphere as the height changes, and give the calculation formula of the laser scattering character of cloud layer.
降雨高度是地-空路径雨衰减预测中最重要的参数之一。
The rain height is used as one of the most important parameters, to predict rain attenuation along an Earth-space.
进一步分析了雷达辐射源位置、星座几何形状和星座的卫星高度对几何精度衰减因子的影响。
Then, the effects of radar beacon position, cluster geometry and satellite altitude on the geometry dilution of precision factor are analyzed.
这一波动随高度增加而衰减。
分子密度随着高度的上升而指数衰减。
为避免产生光子并合现象的产生，可以利用在接收光路上加装中性衰减片、提高光电倍增管开始工作的高度和降低光电倍增管增益等措施来分段测量，提高臭氧测量的精度。
To avoid the phenomena of photon overlap, many measures such as neutral optical attenuator, gate witch and reducing the gain of PMT, are taken to enhance accuracy of ozone measurements.
轨道会渐渐衰减，这是因为卫星与为数甚少的空气分子之间相互碰撞所致。即使是在通常被划归为“外太空”的高度上也还找的到这些分子。
Orbits gradually decay as a result of collisions with the small number of air molecules found even at altitudes normally classified as "outer space".
水雾系统对红外光谱有着强烈的衰减作用，因此在军事目标的各种制导对抗中被予以高度的关注。
Water fogs system can mightily attenuate the infrared spectrum, so more and more attention has been paid to this problem in military.
水雾系统对红外光谱有着强烈的衰减作用，因此在军事目标的各种制导对抗中被予以高度的关注。
Water fogs system can mightily attenuate the infrared spectrum, so more and more attention has been paid to this problem in military.
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