楔積 的英文怎麼說

中文拼音 [xiējī]
楔積 英文
exterior algebra
  • 楔 : Ⅰ名詞1. （榫頭） wedge2. （木釘; 竹釘） pegⅡ動詞（楔） wedge
  • 積 : Ⅰ動詞（積累） amass; store up; accumulate Ⅱ形容詞（長時間積累下來的） long standing; long pending...
  1. Cyclic pressing is a new kind of densification processing, which is introduced to densify as - deposited ring of al - 20 % si / sicp. this paper includes the densification result and rule of this technics. the research shows that this technics can be successfully used to densify spray - forming porous material and can be availably adopted to improve mechanical performance and microstructure. this technics is characterized by simple equipment 、 small expense and flexible process, and these characters will make it come true to producing spray - deposited rings less costly

    本文採用一種新型緻密化工藝?楔壓工藝?對噴射沉積al - 20 % si / sicp大環進行了緻密化加工，採用密度硬度分佈、抗拉強度變化和檢測顯微組織變化的實驗研究方法對其緻密化效果及該工藝規律進行了研究，通過研究表明了楔壓工藝可以成功地用來緻密化噴射沉積多孔材料，該工藝有效地提高了噴射沉積大環件的緻密度和抗拉強度並改善了組織。
  2. In this dissertation, al - si / sicp composites brake rotor with diameter of 1200mm was firstly fabricated by a novel spray deposition technology, and simultaneously coupled brake pad was prepared by a novel dry - powder processing route, termed as two - step pressing process. a wedge pressing technology was developed to densify the as - produce al - si / sicp composite brake rotor

    本文首次採用噴射沉積技術制備了直徑達1200mm的al - si / sicp制動盤，同時採用二次壓制工藝制備出了配套的合成閘片，研究了制動盤的楔壓緻密化技術、機理，復合材料摩擦磨損性能及機理。
  3. As an advanced materials preparation technology, spray - deposition has shown remarkable superiority in producing large - sized alloys and metal matrix composites. however, the spray deposeted preforms usually contain a certain quantity of porosity. besides, the oxide films on the surface of the particles lead to week metallurgic conjunction between the particles. in order to obtain an ideal structure and performance, the porous preforms need further densifying and plastical forming. in this paper, a new technology named wedge pressing was used to densify spray - deposeted 5a06 aluminium alloy, in which the large deformation can be obtained through the sum - up of local deformation and multi - step small deformation. this method can also solved the problems in traditional processing and greatly decreased the producing cost. what ’ s more, the reserch on the wedge pressing desification rules about the large - sized spray deposeted preforms was significant it was vital not only to the further densification of the prefoums but also to the further research on plastical deforming the research was also benefit to the industrialization an the application of the spray deposeted porous materials

    坩堝移動式噴射沉積技術作為一種先進的材料制備新技術，在制備大尺寸合金及金屬基復合材料方面具有顯著的優越性。然而噴射沉積坯件特別是大型坯件通常存在一定量的孔隙，顆粒表面存在一定量的氧化膜，顆粒之間未能完全達到良好的冶金結合狀態，因此需要進行后續緻密化和塑性變形才能獲得理想的組織和性能。本文採用一種新型的楔形壓制工藝，即通過局部變形、多道次小變形累積實現大變形的緻密化加工方法，對噴射沉積多孔坯料進行后續緻密化和塑性變形，很好地解決了傳統加工工藝的難題，大大降低了生產成本。
  4. The primitive study on the emplacement mechanism suggests that the volcanic rocks had underwent the stages of the trench accretion and the basement of forearc basin, which received the elastics of the yanbian group

    經過初步的侵位機制分析，可知這套火山巖經歷了海溝增生楔、弧前盆地基底，並接受了鹽邊群碎屑巖的沉積。
  5. Lowstand fans and lowstand wedges formed in lowstand system tracts of sq5 and sq6 ( that is damoguaihe formation ) and deep water turbidite fans deposed in late trangrassive system tract and early highstand system tract are the major reservoir with good physical characteristics

    層序5和層序6 （相當于大磨拐河組下段）低水位體系域沉積的低水位楔和低水位扇及水進晚期、高水位早期出現的深水濁積扇具有良好的儲集物性，也是主要的儲集層。
  6. In the light of all kinds of structural faces and their assembles along tunnel, the place and growth depth of instable cuneiform body in tunnel wall rock could be predicted, then its volume and weight of instable cuneiform body are estimated based on the equator plane projecting method and the solid body ratio geometry method, which offers reliable geologic data for designing corresponding supporting measure

    摘要利用赤平投影法和實體比例幾何法分析隧洞圍巖穩定性，根據隧洞沿線所遇結構面相互組合形式，預測隧洞圍巖不穩定楔形體的位置及其發育深度，從而估算不穩定楔形巖塊的體積和重量，為設計相應的支護措施提供可靠的地質依據。
  7. The extensional activities of hefei basin occurred in the period between late cretaceous and paleogene. as a result, the extensional normal faults were took place along the pre - existing nearly ew faults and the tan - lu fault zone. the deposition of half - graben was formed

    合肥盆地的伸展活動發生於晚白堊世至早第三紀，伸展活動是疊加在前兩期走滑構造之上，形成了以半地塹式楔形為主的沉積。
  8. Results the occlusion contact data and graph of wedge - shaped teeth defect had the features of trauma occlusion. 42. 97 % of them has the larger axial gradient degree, 96. 09 % of them has abration in different classes, 46. 29 % missing the front teeth and 57. 03 % missing the buccal teeth

    方法採用臨床物理檢查和石膏模型測量，確定楔狀缺損牙軸傾度、磨損指數、牙缺失等指標；採用計算機圖像處理技術，自行編制軟體程式及硬體系統，測試被檢光（牙合）片，分析並提取楔狀缺損牙接觸（牙合）力、面積、接觸點（牙合）應力等資料和圖形信息。
  9. Secondly, the effect of transverse deforming on the property of the wedge pressing was studied. the results showed that : the wedge pressing stock with the transverse deforming amount of 10 % acquired the best performance. the highest density got the biggest rate of slope while with the amount of 30 % the curve was more some special structure and performance as following : the large porosities was crushed into small or linear ones with the high - direction deformation amount of 20 % ; as the increasing of the high - direction deforming, the particles got a further deforming, the porosities got a further crushing, the small porosities were mergered by the large ones and the former then disappeared ; when the amound reached 60 %, the quantity of the porosities would obviously decrease which made the materials compact, the microstructure more uniform and the density and hardness curves more horizontal, the relative desity could reach 99. 7 %, the tensile strength b of the as - compacted samples reached 408mpa with the yield strength s teached 289mpa and the elongation percentage reached 13. 6 %. in addition, the microstructure of the wedge pressing stock under the pressing temperectureof 450 was uniform, the porosities and the boundries of the grains basically disappeared and the conjunction between particles was great

    採用雙向楔形壓制，大尺寸噴射沉積5a06鋁合金楔壓坯的組織和性能變化具有如下特點:當高向變形量為20 %時，大的孔洞變形破碎為小的孔洞，或呈線狀孔;隨著高向變形量的增加，顆粒進一步變形，孔洞進一步破碎，大孔「吞併」小孔，小孔塌陷並逐步消失;當高向變形量達到60 %時，孔洞量大為減少，材料基本緻密，組織趨于均勻，楔壓坯料的密度、硬度變化曲線接近水平線，坯料的相對密度達99 . 7 % ，抗拉強度_ b = 408mpa ，屈服強度_ （ 0 . 2 ） = 289mpa ，延伸率= 13 . 6 % ;對比其它的壓制溫度，在450楔形壓制的坯料組織均勻，孔洞及顆粒邊界基本消失，顆粒之間冶金結合良好。
  10. Near the faulty step - break, low stand system developed, and some sediment system distribute broad, such as alluvial fan, low stand wedge, low stand fan, and so on. the sand body can form not only the trap of dying out upward and sand lens, but also fault - iithology trap. the study shows that fault - lithology trap is most important trap style in study area especially sha - 3 formation

    斷階坡折附近是低水位體系域發育的重要場所，常發育沖積扇、沖蝕作用的下切河道以及低水位楔狀體、低水位扇體等沉積體系，這些砂體不僅具有形成上傾尖滅或砂巖透鏡體圈閉的條件，而且可形成斷層?巖性圈閉。
  11. Compared with those of as - sprayed ring, hardness and tension strength of area near processing face are increased by 45 % and 40 % respectively. friction mechanical performance of the ring is improved at large extent, and especially the wearing amount is merely 13 % of as - sprayed rings. after dual - direction cyclic pressing, the pore - closed state and the distributing of density and hardness are nearly identical in every part of ring. the friction mechanical property is close to that of single - direction - cyclic - press ring

    靠近壓力加工面部位，硬度較沉積坯提高了45 % ，拉伸強度較沉積坯提高了40 % 。雙向楔壓后孔洞閉合、密度硬度分佈都比較均勻。單向楔壓后，用壓力加工面作為摩擦面， al - 20 % si / sicp復合材料的摩擦磨損性能得到大幅度提高，尤其磨損量為楔壓前的13 % 。
  12. ( 4 ) a veries of depositional system of early cretaceous have been identified firstly : basin floor fan, slope fan, leveed channel, subparallel facies, slump facies, lowstand wedge, tst, hst. combining with seismic reflection and log response, this paper discusses distribution of above facies, microfacies and reservoir characteristics

    （ 4 ）首次確定了下白堊統的各種沉積體系：盆底扇、斜坡扇、有堤水道、亞平行相、滑塌相、低位楔、 tst 、 hst ，結合地震反射和測井響應，討論了它們的分佈，微相和儲層特徵，對今後勘探開發上作無疑有重要價值。
  13. The main conclusions are drawn as follows : ( 1 ) for spray - forming ring of little thickness, densification results including friction mechanical property were investigated. after single - direction cyclic pressing, in the region near processing face, cavities close well and mechanical performances are better than those of region far from processing face

    本論文的主要研究內容和研究結論如下: （ 1 ）對單、雙向楔壓工藝加工厚度較小的噴射沉積al - 20 % si / sicp復合材料環件的緻密化效果以及緻密化加工后環件的摩擦性能進行了研究。
  14. And by using the wedge accumulation model, a formula for calculating the angle of repose of symmetrical dispersed sediment is deduced ; and then combining the calculation formula of dry density, the angle of repose of symmetrical dispersed sediment can be calculated

    運用散體沙的楔入堆積模型，推導散體沙的水下休止角計算公式，並結合干容重計算公式，計算散體沙的水下休止角。
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