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。
With the use of finite method we have developed computer simulation software for vacuum microtriodes with wedge - shaped and cone - shaped cathode on the basis of stduying deeply the field emission theory of vacuum microelectronics. the software included field section, grid point numbering, and the calculation of electric currents, transconductance and cathode capacitance, moreover, it can simulate the properties of vacuum microeletronic with variant structures and sizes. the relationship was studied and simulated among electic properties and device structures, sizes and cathode materials etc. the optimized design of vacuum microtiode was proposed
本文在深入研究真空微電子器件場致發射理論的基礎上，根據圓錐形、
楔形陰極真空微電子三極體的不同特點，分別建立了物理和數學模
型，在考慮空間電荷密度影響的前提下，以有限元法為基礎採用迭代的方法計算出真空微電子三極體內的電勢分佈情況，繪制出了等勢線、電子軌跡線，並得到了器件電學性能隨幾何參數的變化情況。
An experiment instrument of horizontal evaporation cooling motor with the same dimension such the calculation model is designed and established
為了驗證計算結果，設計並建立了與計算模
型尺寸相同的臥式蒸發冷卻電機
楔形氣隙旋轉實驗裝置。
Under the assumption that the inner surface of stator sleeve and outer surface of rotor are smooth, taking the fact into account that the temperature of stator sleeve of evaporation cooling motor keeps almost the same, horizontal evaporation cooling motor is simplified as a physical model of two coaxial sleeves, with outer sleeve ( the stator ) holds still and keep at constant temperature and inner sleeve ( the rotor ) is rotating and heated
本文通過數值和實驗手段研究了臥式蒸發冷卻電機
楔形氣隙中的流體流動、傳熱現象。本文在定子套筒和轉子表面光滑的假設下，針對蒸發冷卻電機定子套筒壁面基本恆溫的特點，將實際蒸發冷卻電機簡化為同軸套筒內筒加熱旋轉、外簡靜止定溫的物理模
型。
Gib head taper keys
鉤頭
型楔鍵
Directed against the jump disease at bridge abutment in the high - grade highway, for the first time, the paper puts forward the treatment method of the flexible approach slab, which is consisted of geocell
針對我國高等級公路路橋過渡段橋頭跳車病害嚴重的現狀，本文首次提出了由土工格室構成的
楔型柔性搭板處治技術。
We mainly produce shifting fork and release fork of large - scale and heavy - duty truck ; shifting fork, release fork, shifting block, choosing - gear shaft, reverse - gear shifting fork shaft, right - and - lfet steering joint arm, upper cross arm shaft, wheel hub, link rod of all kinds of cars right - and - left supports, nipbutton of train auto - girder parts ; centeral wedge, fixed lean - board of absorber ; shifting fork, erankshaft, link rod, under - link board, startup pole of motocycle ; mould forging of mine, construction machinery, textile machinery, non - ferrous metal industry, etc
主要生產產品：大、重
型卡車變速箱的撥叉、分離叉等；各種轎車變速箱的撥叉、分離叉、撥塊、選檔軸、倒檔撥叉軸、左右轉向節臂、上橫臂軸、輪轂、聯桿，火車自動梁部件的左右支柱、夾扣，減震器的中心
楔塊、固定斜板等鍛件；摩托車的撥叉、曲軸、連桿、下聯板、啟動蹬桿總成；礦山機械、建築機械、紡織機械、有色金屬等精模鍛件。
In the clubmosses and horsetails only one type of strobilus is formed, while in the gymnosperms female megastrobili and male microstrobili both develop
石松和
楔葉類只形成一種類
型的球果，然而裸子植物既有雌性的大孢子葉球也有雄性的小孢子葉球。
Gaskets regularly furnished in class 150 and 300 wedgeplug valves are corrugated soft iron of excellent strength and ductibility. classes 600 - 1500 are ring - joint type
壓力等級為150和300的
楔形塞閥門通常配置的墊圈是波紋狀軟鐵，具有優異的強度和延展性。壓力等級600 - 1500則採用環連接類
型。
By calculating large quantity of examples, this text studies earthquake resistant behavior of tapered portal frame with pined bases and analyzes its natural frequency, natural period of vibration and vibration mode. by comparing interior forces of pillar top, beam end and span midpoint in two conditions that seismic action effect participates combination of forces and not when portal frame is n ' t changed, ensure conditions that combination of seismic action effect has controlling f unction during tapered portal frame design, and tapered portal frame demands anti - earthquake design
本文通過大量算例分析，研究柱腳鉸接
楔形變截面門式剛架的抗震性能，並對其自振頻率、振
型進行了分析；通過比較地震作用效應參與荷載組合與不參與荷載組合兩種情況下，樑柱截面尺寸不變時，柱上端、梁端、跨中截面處的內力大小，確定在什麼情況下地震作用效應組合起控製作用，變截面門式剛架需要進行抗震設計。
Defect location, representative defect and its ultrasonic echo characteristics corresponding of tungsten alloy shells had been systematically studied by both vertical wave sensors and transverse wave sensors calibrated after manufacturing
摘要採用縱波直探頭和自磨製經校準的斜
楔橫波探頭，對鎢合金殼體部件進行了檢測，並對鎢合金殼體的缺陷定位、典
型缺陷及其對應的回波特徵進行了研究。
With the help of marc program, the author, through simulating the different foundation condition, analyzes the changed rule of stress and displacement, discusses the active mechanic of the flexible approach slab in dealing with the jump
文中運用marc軟體，通過模擬不同的地基條件，分析應力和位移的變化規律，研究了
楔型柔性搭板在處治橋頭跳車中的作用性狀。
Finally, the paper tests the effect of the flexible approach slab used in the real project and sums up the techniques and requirements of construction
最後，結合實際工程進行了分析驗證，同時對
楔型柔性搭板的施工過程和要求進行了總結。
Retainer ring, holder and wedge section are made from gfrpp with high strength, anti - corrosion, impact resistance, size stability etc
曝氣器的壓蓋、支座、
楔型卡座採用玻璃纖維增強聚丙烯注塑成
型，強度高、耐腐蝕、抗沖擊、結構尺寸穩定。
Is a wedge test specimen utilized for chill or analysis control
是否用
楔型試塊進行分析控制
The checkgate mainly includes frame, poling board, wedge - shaped device and etc
堰門主要有堰框、堰板、
楔型裝置等部件組成。
The rest of the tigers are forming some kind of wedge
其餘的隊員正在組成
楔型
Heated wedge shank
楔型壓接加熱柄
Abstract : a v - bar flowmeter is introduced. the flowmaeter equipped with automatic pressure and temperature compensation and teletransmission. the operational principle, basic strucure and features of the flowmeter are described
文摘:介紹一種帶壓力、溫度自動補償的電遠傳楔型流量計，闡述了該流量計的工作原理、基本結構和性能特點。
