diffration 中文意思是什麼
diffration
解釋
衍射-
Computer analog of fraunhofer diffration
夫瑯和費衍射的計算機模擬 -
The effects of waves transformation, refraction, diffration, reflection and breaking are all due to the depth of water, varying topography, bottom friction, obstacles and current as waves proceed from offshore to near shore regions. some basic parameters which are relevant to the cost of buildings as well as the type of structures are determined by the wave factors since these projects are placed in near shore area, so it is of great importance to study the regularity of wave transforming
外海波浪傳入近岸淺水區受水深、地形、底摩擦、障礙物以及水流等因素的影響，會發生變形、折射、繞射、反射和破碎等各種現象，然而大部分海洋及海岸工程位於近岸地區，該地區的波浪要素將是確定工程造價、建築物型式等最基本的參數，因此研究近岸地區波浪的變化規律具有重要意義。 -
Kirchhoff ' s diffration theory
基爾霍夫衍射公式 -
And the parameter data and the figures have not been calculated ever. compared with the performance curves of the primary aod, the aod with the optimum design shows great capacity : at the extreme point of bragg diffration the optimized one obtain a 2. 4 times wilder relative 3db bragg bandwidth than the primary one ; and with the same relative 3db bragg bandwidth which is 0. 67, the optimized aod has a relative 2 times of the the primary aod
用圖示的方法將優化設計后的曲線與非跟蹤的曲線進行對比，在進入布拉格衍射區的臨界點處經優化設計的器件相對帶寬達到非跟蹤器件的相對帶寬的2 . 4倍;在相對帶寬? f = 0 . 67的情況下，經優化設計的器件相對長度是非跟蹤器件相對長度的2倍。
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