背向褶皺 的英文怎麼說
中文拼音 [bēixiàngxízhòu]
背向褶皺
英文
back floding-
In view of the variation in the dip, here could be a local anticlinal fold.
鑒于傾斜方向的變化，此地可能存在一個局部的背斜褶皺。By means of stress - strain feature of upper and lower strata of fold neutral plane in the course of longitudinal fold formation, the differences between the upper coal bed and lower coal bed of fold neutral plane are analyzed from the coal thickness, coal structure, coal body structure, coalbed gas occurrence and diversities etc., revealing the cause of these appearances
摘要利用縱彎褶皺變形中中和面上下巖層的不同應力與應變特點，分析了處于褶皺中和面上下各煤層在背斜與向斜部位煤層厚度、煤層構造、煤體結構及煤層瓦斯的賦存規律與差異性，揭示了這些現象產生的原因。The radiation pattern of the antenna is more rotationally symmetric, and a more reduction on the sidelobe levels of the antenna is achieved as compared to the antenna with the corrugated soft surface. in conclusion, in the present thesis both theoretical and experimental research works have been carried out intensively on patch antennas based on photonic - bandgap structures. it is shown that our photonic bandgap structures can greatly improve the performance of the patch antennas
該平面圓環結構軟表面天線是在空氣介質的皺褶圓環結構軟表面天線的基礎上改進得到，為了便於比較，我們首先研究了空氣介質的皺褶圓環結構軟表面天線，用fdtd方法並結合pml吸收邊界條件對該天線的性能進行了研究，結果表明天線的帶寬增加，天線的軸對稱性得到了很大改善， e面和h面方向圖的波束幾乎重合，天線的旁瓣和背瓣受到很大的抑制。Nw compressive structures are developed in indosinian epoch in which folds are predominant and companied with some small thrusts. nearly ns or nnw compressive structures are developed at the end of yanshan epoch in which it is mainly overthrusted structures and closed folded structures. large gentle anticlines and synclines are developed from the end of mesozoic to early tertiary, and antithetic sagging structures are developed in mesozoic
研究發現，本區印支期發育了以褶皺為主、局部伴有小型逆斷層的北西向壓性構造，燕山末期（中生代末期）發育了以逆掩構造和緊閉的褶皺構造為主的近南北向或北北西向壓性構造，中生代末到第三紀早期發育了以寬緩為特徵的大型背斜向斜構造，以及中生界內部的逆牽引構造。分享友人