low-aspect ratio 中文意思是什麼
low-aspect ratio
解釋
小展弦比-
Synthesis of starlike low - aspect - ratio block molecules
星形低分子量塊狀化合物的合成 -
The formation mechanism of cds nanowires was also discussed. only short cds nanorods with low aspect ratio were obtained in the case of only using ethylenediamine as the reaction medium
首次以聚乙烯醇（ pva ）為基體採用溶劑熱方法成功制備了cds納米線，表徵了其結構性能，並討論了其制備機理。 -
Carbon nanotubes ( cnts ) have attracted great attention in material science and technology for their semi - one - dimension structure, good electrical conductivity, excellent chemical and mechanical properties. especially for their high aspect ratio and emitting electron at low voltage, cnts have been considered as one of the most promising material for field electron source
碳納米管具有準一維的結構、良好的導電能力、化學穩定性和機械強度，由於其極高的長徑比而且能在較低的宏觀電場下發射電子，因此被認為是較為理想的場發射材料。 -
Based on 0 - d core physics model, the core parameters of low, moderate and high aspect ratio are calculated by system code. in addition, an advanced plasma configuration for fds system has been proposed, which aims at high beta, high bootstrap current and good confinement. in order to determine the feasibility of fds operation, a two - dimensional time dependent free boundary simulation code has been adopted to simulate time - scale evolution of plasma current profile and boundary position
在建立零維堆芯物理模型基礎上，利用系統分析程序計算了堆芯物理參數，分析了fds -標準環徑比情況的先進運行模式，並對其位形演化進行了放電模擬，獲得比較滿意的結果，為fds -系統概念設計奠定了基礎。 -
Several topics on coding and modulation theories of uav communication were discussed in this thesis. by analyzing features of uav communication, difference on three aspect between uav and satellite / civil mobile communication were pointed out, i. e. rapidity of the channel state parameters changing when low - altitude flying, wide range of the signal to noise ratio ( snr ) in receiver, and demand on transmission delay
無人機通信與衛星通信、移動通信有相似之處，也有明顯不同，主要是：無人機低空飛行時通道參數變化劇烈，通信中接收機信噪比變化范圍大，要求傳輸時延短。
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