density spread 中文意思是什麼
density spread
解釋
密度展布-
When the bar code is of higher density, adjacent edges interact each other due to the influence of the point spread function of image collection system, therefore, this kind of method becomes invalid
當條碼密度較大時，受光學系統點擴展函數的影響，邊緣相互干擾，這種技術不再適用。本文研究了高密度二維條碼的識別技術。 -
Match plant characteristics ( such as foliage density, canopy height and spread ) to shading requirements. choose local native species with low water requirements wherever possible
對于遮陽的需求要符合自身的特點（例如：樹葉的密度，樹冠的高度，擴展的寬度） 。在任何可能的地方，盡量使用需水量少的本地植被。 -
The suburbanization of the united states was prior to the other countries in the world, vvhich had its own characteristics : it mainly was a process of natura ! spread from the city ? re to the outer ; during the process, it was very obvious that the social stratum differed according to region ; besides, it also presented the characteristics of extension with low density and decentralization
美國的郊區化走在世界各國之先，有其特徵：它主要是一個從城市核心向外自然擴展的過程；郊區化過程中，社會階層地域分異比較明顯；還呈現出低密度蔓延和分散化的特徵。 -
Spread spectrum technique, which can handle variable adverse environments, exhibits unique qualities that have a number of advantages in anti - jamming, anti - noise, reduction of multi - path interference, low power spectral density, privacy, selective addressing and code division multiplexing
擴頻通信技術具有優越的抗干擾、抗噪音、抗多徑衰落性能，能在低功率譜密度下工作，具保密性、可多址復用和任意選址，能有效克服各種惡劣的通道特性，目前廣泛應用於移動通信、雷達、導航、測距、電力線通信等領域。 -
The algorithm is a new multi - objective optimization evolutionary algorithm using elitism, in which fine - grained fitness assignment strategy, a density estimation technique, and an enhanced archive truncation method are used. the algorithm can converge to the pareto optimal solutions rapidly and the non - dominated solutions gain better distribution and spread
Spea2演算法是一種新的使用了精英機制的多目標優化演化演算法，它採用了細粒度賦值策略和密度估計技術，整個演算法可以快速收斂到pareto最優解，並且可以獲得很好的分佈性和延展性。 -
Additionally, since direct spread spectrum sequence ( dsss ) signal has an ultra - low power spectrum density, finding approaches to detect it and estimate its parameters in the non - cooperative communication system is a great challenge for applications
另外， dsss信號由於具有極低的功率譜密度，如何在非協作通信中不知道擴頻序列的前提下對其進行檢測和估計，是一個具有很強應用背景的課題。 -
Underground building with its closed, exits lacked, the people density being large, the flow direction of smoke and the spread direction of fire are consistent in the evacuation routes. fires in the underground building are much danger than over ground building. the hazards of smoke are especially strict in underground building, so smoke control in the underground building has becoming the focus
地下商業街由於其封閉性強，與地面直接連通的出入口少，內部通道的人流密度大，火勢蔓延的方向和煙氣流動的方向與人員疏散的方向相一致，因此一旦發生火災將產生比地上建築更為嚴重的後果，火災時煙氣危害將更為嚴峻，因此地下商業建築的煙氣控制研究越來越受到人們的關注。 -
Only on the surfaces with moderate hydrophilicity could the cell have a polygonal shape and spread well. on the control plla and the grafted plla membranes with high density of hydrophilic polymers the cells were round shape and aggregated with each other to form cell aggregates
通過改變單體濃度和接枝時間，制備了一系列不同接枝量的plla - g - paam和plla - g - pmaa平面膜，並考察了材料表面不同的官能團以及材料表面的親水性對細胞鋪展性能的影響。 -
Simulink and analysis about balanced gold code from correlation and power spectrum density curve are processed. at the same time, simulink experiment of ber performance on the base of theory analysis using designed spread spectrum system model
在碼序列的互相關性和功率譜密度分佈上對平衡gold碼進行了模擬和分析，同時在構建的擴頻系統上對理論分析進行了誤碼性能的模擬。
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