propagation attenuation中文什么意思

attenuation: n. 1.變薄，變細。 2.減少，減弱。 3.稀釋。 4 ...
attenuation: n. 1.變薄，變細。 2.減少，減弱。 3.稀釋。 4.【物理學(xué)】衰減。
propagation: 持續(xù)培養(yǎng); 傳播，宣傳; 傳播；繁殖；生長; 傳波; 第八章繁殖技術(shù); 繁殖；傳送; 廣傳; 擴散; 樂殖; 散括; 增長; 增生; 增殖
a orption attenuation: 吸收損耗
absorption attenuation: 吸收衰減; 吸收損耗

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When electrical parameter is changd by wet tunnel wall , electromagnetic wave propagation attenuation will vary
摘要礦井隧道壁濕潤會引起電參數(shù)改變，從而使電磁波傳播衰減率發(fā)生變化。
Moreover , although the diversity degree is limited , the interference level is closed to ideal case ( ie . , signal can received by all base stations ) and then capacity closed to isolated cell because of propagation attenuation especially in lower shadowing conditions
此外，由于信號固有的傳播衰落，雖然分集度受限，但其基站所受干擾水平接近理想情形(移動臺信號被所有基站接收) ，進而容量接近孤立蜂窩的容量。
Since there are only few papers about the topic , the simulating result have no alternative but to compare with the data of the upper inhomogeneous terrain . the similar trend is found for the two results , and larger propagation attenuation will follow the higher frequency or larger conductivity of the medium
由于有關(guān)覆蓋層傳播方面的文獻資料幾乎沒有，所以只能把結(jié)果與地表均勻巖層的數(shù)據(jù)進行比較，結(jié)果表明平面波法和通信公式法計算得出的結(jié)果完全一致，并與在地表均勻巖層傳播結(jié)果趨勢類似，而且隨著頻率的增高或?qū)щ娐实脑龃?，傳播衰減也增大。

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