main fold 中文意思是什麼
main fold
解釋
洲皺-
( 2 ) the causation that the caustic phenomena of electromagnetic wave propagation in two - dimension concave reflectors occurs and the types of singularities in caustic fields are investigated, and the conclusion that there are two types of singularities ( fold and cusp ) in caustic fields in two - dimension concave reflectors is obtained ; by symplectic geometrical method, formulations of computing wave fields in and far away from caustic fields in two - dimension concave reflectors are deduced, and the results are plotted in pictures. ( 3 ) the cause of the caustic phenomena of electromagnetic wave propagation in three - dimension concave reflectors and the types of singularities in caustic fields is discussed, and the conclusion that there are three main types of singularities ( fold, cusp and swallowtail ) in caustic fields in three - dimension concave reflectors is obtained ; by symplectic geometrical method, the formulae of computing wave fields in and far away from caustic fields in three - dimension concave reflectors are deduced. particularly, the wave fields in ellipsoid concave reflector are computed, and the results displayed in special sections are given
論文主要包括三個方面： （ 1 ）分析了凹面反射的焦散現象，給出了不同凹面反射的焦散圖； （ 2 ）分析了二維凹面反射波動場焦散現象產生的原因及焦散區奇性的種類，得出了二維凹面反射波動場焦散區奇性主要有折疊（ fold ）和尖點（ cusp ）兩種的結論，利用辛幾何方法構造了圓錐曲面反射波動場非焦散區和焦散區的通用計算公式，並給出了圓柱面、橢圓柱面及雙曲柱面反射的計算結果； （ 3 ）分析了三維凹面反射波動場焦散現象產生的原因及焦散區奇性的種類，得出了三維凹面反射波動場焦散區奇性主要有折疊（ fom 、尖點kusp和燕尾k ）三種的結論，提出了利用辛幾何方法計算三維凹面反射波動場非焦散區和焦散區的計算方法，並給出了三軸不等橢球體凹面反射波動場的計算結果剖面圖。 -
Thermal deposits mainly formed during middle - late yanshanian age, related to extension structure, with main mineralization in qingfeng competent deformation zone, western shennongjia fault arch, northern huangling fault arch, xianfeng anticline of enshi platforman fold bundle
熱液型鉛鋅礦床主要形成燕山中晚期，與滑脫拆離構造密切相關，礦化主要集中於青峰強變形帶、神農架斷穹西部、黃陵斷穹北部、恩施褶皺束咸豐背斜、長陽褶皺束走馬坪背斜中。 -
Jiangsu haian longteng nc machine tool co., ltd. concentrating on shearing to fold to press a profession number to control tool machine to develop, development and manufacturing produce, the main product has a liquid to press a put type to sheartrigger, liquid to press plank to anticipate to fold curved machine, various hydraulic presses machine, etc., is one of the business enterprise that the national machine isdustrial point production shears to fold tool machine
海安龍騰數控機床有限公司，致力於剪折鍛壓行業數控機床的研製、開發和製造生產，主要產品有液壓擺式剪板機、液壓板料折彎機、開卷校平剪切生產線、卷板機，各型液壓機等，是國家機械工業重點生產剪折機床的企業之一。 -
Alse the south - north direction structure ' s scale is very large. main performance is : straight lineral valleys and the varying of the east - west direction fold " s hinge
南北向構造規模也較大，主要表現為平直的線形溝谷及東西向褶皺的樞紐起伏。 -
Beginning form relation of basin - mountain, the tectonic evolution and the petroleum system and pool - forming process have been studied with the integration of structural physics modeling, balance profile reversion and other new testing technology. the main innovative achievements of the dissertation can be summarized as following : 1. on the basis of comprehensive analysis of yanqi basin relationship to tianshan orogenic belts, it was suggested that kuluketage faulted - upheaval was an aulacogen in early paleozoic, which undergone multiple opening - closing along with tianshan orogenic belts, and suffered extensively compressing in late hercyhian cycle and formed a " v - type " thrust - fold belt
論文總的指導思想是以現代石油地質理論為基礎，以整體、動態、系統、綜合分析為原則，以成盆?成烴?成藏研究為主線，運用正、反演相結合的殘留盆地油氣成藏系統評價思路，採用構造物理模擬、平衡剖面復原和多種測試新技術，從盆山耦合關系切入，研究含油氣系統成藏要素及其相互作用過程，探討油氣成藏主控因素和油氣分佈的有序性，取得如下創新性成果和認識： 1 、系統分析了焉耆盆地形成演化與天山構造帶的關系，提出盆地南側的庫魯克塔斷隆在早古生代為一大型裂陷槽，之後隨著天山構造帶的演化，經歷了多次開合運動。 -
The main structures effecting the slopes are fold, multi - level bedding glide and the strongly developing cleavage
三峽庫區特定的歷史構造條件為巴東組深厚層鬆散斜坡的發育準備了變形條件。 -
The main factor and the judgement method of landslide stabilty are analyzed in the paper. the use condition and calculation process of landslide stability theory on circular arc slide plane, single plane slide plane, fold slide plane and bishop slice method are expounded in the paper. the calculation evaluation of landslide stability and the calculation of landslide thrust are also descibed in detail
論文分析了影響滑坡穩定的主要因素和滑坡穩定性的判斷方法，重點對圓弧形滑動面、單一平面滑動面、折線形滑動面、 bishop條分法等不同滑坡模式的滑坡穩定性理論計算方法的使用條件和計算過程作了詳盡的闡述，對滑坡穩定性計算評價和滑坡推力計算進行了詳細說明。
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