衰落范圍 的英文怎麼說

中文拼音 [shuāilàfànwéi]
衰落范圍 英文
fading range
  • 衰 : 衰動詞（衰弱） decline; wane
  • 落 : 落名詞[方言] （北方對蓮花落的俗稱） a kind of folk song
  • 范 : 名詞1 [書面語] （模子） pattern; mould; matrix 2 （模範; 榜樣） model; example 3 （范圍） boundar...
  • 圍 : Ⅰ動詞1 （四周攔擋起來 使裡外不通; 環繞） enclose; surround; corral 2 （繞; 裹） wrap Ⅱ名詞1 （四...
  • 衰落 : decline; be on the wane; go downhill; fading; decay; decaying; lapse; erode
  • 范圍 : scope; limits; extent; boundary; confines; range; range dimension; spectrum
  1. Through textual research and analysis on two historical materials in dao zang ' s shangqing mingjian yaojing and dongxuan lingbao daoshi mingjingfa used for polishing bronze mirrors, this article holds that : china had already mastered the technique of plating a bronze mirror with an alloy of stannum, lead and hydrargyrum during the northern and southern dynasties at latest, and this technique was quite probably developed by necromancers or taoists in the process of producing artificial gold and silver, golden elixir and great elixir ; before the song dynasty, the technique of using the alloy of stannum, lead and hydrargyrum to polish a bronze mirror was only prevalent among a part of taoist alchemists ; and after the song dynasty, due to the decline of taoist laboratory alchemy, the technique of using such an alloy was spread among the people

    摘要通過對收錄于《道藏》之中的《上清明鑒要經》和《洞玄靈寶道士明鏡法》兩部經書所記載的兩則磨鏡藥史料的考證分析，提出至晚在南北朝時期中國已經發明了用錫汞齊鍍鏡的技術，其技術很可能由方士或道士在煉制黃金白銀、金丹大藥的過程中或社會小范圍內發展起來的；在宋代之前，用錫汞齊磨鏡的技術僅僅在部分煉丹道士中應用流傳，宋之後由於道教外丹術的衰落，用錫汞齊磨鏡的技術流傳於民間。
  2. Simulation results show that abf - csma / ca protocol can realize space - division - multiple - access ( sdma ) and provide very high channel utilization. chapter 3 considers employing smart antennas in the central access point ( cap ) of wireless internet access networks

    第三章研究了智能天線在internet無線接入網路中的應用，主要考慮使用智能天線對抗同通道干擾與多徑衰落，增加覆蓋范圍，並在mac層實現智能天線與網路的有機結合。
  3. The assumption that the channel is known is questionable in a rapidly changing mobile environment, or when multiple transmitter antennas are employed. unitary space - time codes and differential unitary space - time codes do n ' t need any channel information. we discuss the unitary space - time codes briefly and study the details of the dustc, including the fundamental differential transmission and receiver equation, and parameters searching algorithm. the parameters searching and simulations results is proposed

    酉空時編碼及酉差分空時編碼（ dustc ）都不需要通道信息，著重研究了酉差分空時編碼技術，簡要說明了酉空時編碼的信號形式及星座設計方法;分析了dustc的發送和接收公式，分析了dustc的嚴格pep和sep的聯合界，給出了當snr值在不同的范圍時， dustc星座參數的選取準則，並進行了rayleigh衰落通道的模擬。
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