鉆孔結構圖 的英文怎麼說

中文拼音 [zhēnkǒngjiēgòutú]
鉆孔結構圖 英文
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  • 鉆 : 鉆Ⅰ名詞1. （打眼用的工具） drill; auger 2. （指鉆石） diamond; jewel Ⅱ動詞（用尖物在另一物體上轉動） drill; bore
  • 結 : 結動詞（長出果實或種子） bear （fruit）; form （seed）
  • 構 : Ⅰ動詞1 （構造; 組合） construct; form; compose 2 （結成） fabricate; make up 3 （建造; 架屋） bui...
  • 圖 : Ⅰ名詞1 （繪畫表現出的形象; 圖畫） picture; chart; drawing; map 2 （計劃） plan; scheme; attempt 3...
  • 構圖 : [美術] composition of a picture
  1. A patch antenna with air holes in the substrate has been designed. the finite - difference time - domain ( fdtd ) method together with the perfectly matched layer ( pml ) boundary treatment has been used to study the performance of the antenna. it is shown that the surface waves are significiently suppressed, the frequency bandwidth is improved, the sidelobe levels are reduced and consequently the gain in the forward direction is improved by 14 db ( about 4 db higher than the value reported previously )

    設計了一種基底鉆周期圓孔結構的電磁（光子）晶體貼片天線，用fdtd方法並結合pml吸收邊界條件對該天線進行了研究，結果表明本文所設計的基底鉆孔型電磁晶體貼片天線取得了多方面的性能改善，與普通天線相比，基底中的表面波受到很大抑制，天線的帶寬增加，遠場方向圖上天線的旁瓣和背瓣被明顯削弱，向前輻射的增益由原來的12db增加到26db ，增加了14db ，比文獻上報道的gonzalo等人的研究結果提高了4db 。
  2. The performance of the pbg antenna using the new pbg cover together with a pbg substrate is studied by the fdtd method together with the pml boundary treatment. the numerical results show that a more focused beam radiated in the broadside direction is achieved. the gain of the pbg patch antenna in the forward direction is improved by about 6 db. the radiation directivity is improved significantly and reaches 11. 5 db, which is 0. 4 db less than the maximum value that is allowed physically for this size of the antenna ( this difference is about 4. 1 db less than the difference achieved by thevenot et al.,

    用fdtd方法並結合pml吸收邊界條件，我們對加了這種新的覆層結構並且基底鉆孔的復合結構電磁（光子）晶體貼片天線的性能進行了研究，結果證明加了這種新的電磁晶體覆層結構以後，天線的波束收攏很多，並且向前輻射的增益大大提高，與普通天線相比，天線的e面和h面方向圖上向前輻射的增益均提高了約6db ，另外，該復合結構天線的方向性系數達到了11 . 5浙江大學博士學位論文db ，與該物理尺寸天線的方向性系數的理論極限值（ 11 . 9db ）相差0 . 4db ，該差值比thevenot等人設計的電磁晶體覆層天線的相應差值減少了約4 . 1db ，比qiu等人設計的電磁晶體天線的相應差值減少了約1
  3. This paper gives a brief description of the principle of the borehole acoustic televiewer survey as well as the related technique and deals with the data interpretation

    可根據工程的需要，提供多種綜合分析圖件，為大型工程的地基基礎的地質結構分析、評價提供可靠依據，在香港開展的工程中使用了鉆孔超聲波成像，取得較好的效果。
  4. On the base of the study on the hydrogeochemistry at dam area, the author analyzes the last hydrochemistry data of bearing crevice water. from the diagram of piper and the correlation diagram of na / ca and na, it is known that the deep bearing tectonic fracture water is produced by two sources mix, meanwhile it is found out that there is better hydraulic power connection among bore d46, d503, d211, which shows there is better nnw hydraulic power connection at complex zone making up of fault no. 7, no. 15 and no. 2

    在壩區的水文地球化學的研究基礎上，整理分析了壩區以前的承壓裂隙水的水化學資料，從piper圖、 na ca ? na關系圖，說明了壩區深部承壓裂隙水是二源混合的產物，結合聚類分析表明了壩區d46 、 d503 、 d211鉆孔之間存在較好水力聯系，進而說明了在壩區f7與f15斷裂帶以及f2構成的復雜地帶存在北北西向較好的水力聯系。
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