fin material 中文意思是什麼

fin material 解釋
翅片材料
  • fin : n 1 鰭，魚翅；鰭狀物。2 手 臂。3 【航海】（潛水艇的）鰭板，水平舵；【火箭】舵；【航空】穩定器，安...
  • material : adj 1 物質的（opp spiritual）。2 身體上的，肉體上的；物慾的，追求實利的；卑俗的。3 有形的，實體的...
  1. The interpretability of four kinds of ageing materials are as follows : sectioned dorsal fin spine > sectioned lapillus > scale > vertebra. sectioned dorsal fin spine is the best material in ageing of the fish less than eight years. as for the fish elder than eight years sectioned lapillus is the reliable ageing material that had more annulus readings than scale, dorsal fine spine and vertebra

    對8齡以下個體，用背鰭條磨片鑒定年齡效果最佳；對8齡以上個體，臀鱗、背鰭條磨片和脊椎骨上的年輪計數明顯低於微耳石磨片，微耳石磨片上的年輪計數最高，是高齡青海湖裸鯉可靠的年齡鑒定材料。
  2. In this dissertation, the performance of linearly tapered fin - fed slot antenna ( lwsa ) is discussed in theory, simulation and experiment. the radiation pattern characteristic influenced by changes of antenna ’ s dielectric material, tapered shape and dimension is studied detailedly. though the tapered slot antenna design is very important, a good waveguide - to - finline taper transitions is also needed because they could not thought over separately

    本文主要採用理論分析、數值模擬和實驗等手段對線性漸變槽天線的特性進行了研究，分析了介質材料、天線漸變段以及天線尺寸對天線方向圖的影響，分別設計了天線罩、線性漸變槽天線以及天線的饋電結構。
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