接頭形狀 的英文怎麼說
中文拼音 [jiētóuxíngzhuàng]
接頭形狀
英文
joint geometry-
In the course of working, ， the plow will make use of the shuttling method so that it can dig alternately either on the left or on the right. compared to the unilateral plow, it can improve the productivity because it can help leave off the soil 、 take from the consumed energy and reduce the empty journey. to meet the requests above, we will use a remote cylinder with both a small cubage and double functions, approximately designing the plow to be columniform and symmetric. after the experiment for a period in the field, we found that the most frayed areas had happened at the places of both plow shank and share and at the same time the base of the remote cylinder had ruptured suddenly
與單向犁相比，其優點在於：耕地無開、閉壟，地表平整，降低了耕后整地的能量消耗，減少了地頭的空行程，因而大大提高班次生產率。為了滿足犁體梭式作業的要求，我們採用了一隻小容積雙作用的液壓油缸；同時對犁壁曲面的形狀採用了近似圓柱形的對稱設計。但經過一段時間的田間試驗，我們發現：該犁犁胸部分的犁脛和犁鏵上的犁尖在工作中磨損較為嚴重；主犁梁和油缸缸體的連接部分（即油缸底座）突然發生了斷裂，造成整個犁體無法正常工作。And due to the heat expansile coefficient of the stainless steel rather high, the connecting force between the stainless steel pipe and the pipe coupling in the room temperature is much less than that between the titanium alloy pipe and the pipe coupling. the results accord with the tensile experiments well. finally, the dependence of dimensions of the coupling on the strength of the connector system is analyzed
模型計算還表明，被接管材料和管接頭材料之間的熱膨脹系數的差異會造成管接頭系統的室溫強度低於高溫強度；由於不銹鋼的熱膨脹系數較大，使得室溫下1不銹鋼管與n立tinb形狀記憶合金管接頭間的抱緊力遠小於鈦合金管與nitinb形狀記憶合金管接頭間的抱緊力，成功地解釋了拉脫實驗中的結果。The stress state in the stainless steel pipe - titanium alloy pipe - nitinb shape memory alloy connector system is analyzed by using the theory of solid mechanics and the recovery rules of nitinb shape memory alloy with constrains on the basis of analysis of the structure of the connector system and the all steps in the preparation and the service. a mathematical model for the strength was proposed. the temperature dependence of connecting force and the maximal stress intensity in the pipe connector in the process of preparation and service was studied by programming and computing. the computing results show that the difference of heat expansile coefficient between the coupling material and the pipe material leads to the strength of connector system at room temperature less than the strength at high temperature
通過分析管接頭結構以及制備、使用的各個步驟，運用固體力學的基本理論，結合nitinb形狀記憶合金在約束下的回復規律，對不銹鋼- -鈦合金管- -四川大學碩士論文nitinb形狀記憶合金管接頭系統內的應力狀態進行了理論分析，建立了強度的數學模型，通過編程計算，研究了不銹鋼一鈦合金管一nitinb形狀記憶合金管接頭系統裝配及使用過程中的抱緊力以及最大應力強度隨溫度變化的規律。Because of the lower rock fragmentation efficiency and defective geometrical shape of chisel bit, sweden has replaced chisel bit with taper connecting cross chisel bit and button bit since the mid - seventies
因一字形釬頭破巖效率低和幾何形狀結構缺陷等問題，瑞典從70年代中期就用錐體連接的十字和球齒釬頭取代了一字形釬頭。The thirty - four species of the sea urchins belong to 7 order, 17 families and 28 genera. the following is the name list, those with an asterisk are the species recorded for the first time in china. order cidaroida family cidaridae * goniocidaris biserialis ( d6derlein ) * stylocidaris bracteata ( a. agassiz ) * stylocidaris ryukyuensis shigei * stereocidaris indica philippinensis mortensen * rhopalocidaris gracilis doderlein order lepidocentroida family echinothuridae * phormosoma bursarium ( a. agassiz ) araeosoma owstoni mortensen asthenosoma ijimai yoshiwara order stirodonta family phymosomatidae glyptocidaris crenularis a. agassiz family arbaciidae * coelopleurus maculata a. agassiz et h. l. clark * coelopleurus undulatus mortensen order aulodonta family diadematidae chaetodiademajaponicum mortensen family pedinidae * caenopedina mirabilis ( d6derlein ) order camarodonta family temnopledridae temnopleurus hardwickii ( gray ) temnopleurus toreumaticus ( leske ) temnopleurus reevesii ( gray ) temnopleurus apodus ( a. agassiz et h. l. clark ) temnotrema sculptum ( a. agassiz ) temnotrema reticulatum mortensen * microcyphus olivaceus ( d6derlein ) * prionechinus forbesianus ( a. agassiz ) family strongylocentrotidae strongylocentrotus nudus ( a. agassiz ) hemicentrotus pulcherrimus ( a. agassiz ) family echinometridae anthocidaris crassispina ( a. agassiz ) order clypeasteroida family clypeasteridae clypeaster virescens doderlein family laganidae * peronellapellucida d5derlein family scutellidae * scaphechinus mirabilis a. agassiz sinaechinocyamus planus liao family fibulariidae fibularia acuta yoshiwara order spatangoida family loveniidae - lovenia triforis koehler echinocardium cordatum ( pennant ) family schizasteridae schizaster lacunosus ( linnaeus ) family brissidae * gymnopataqus magnus ( a. agassiz & h. l. clark ) family spatangidae * spatangus luetkeni a. agassiz among the species reported, the following species call for notes or simple descriptions
本文根據th . mortensen （ 1928 - 1955 ）海膽專著（ amonographoftheechinoidea ）中的主要分類依據，將海膽綱分為8個目： 1 ）頭帕目（ cidaroidea ）有齒器，圍肛部在頂系內，圍口部有步帶板和間步帶板，大棘很大，有外皮層，無球棘； 2 ）鱗棘目（ lepidocentroida ）有齒器，圍肛部在頂系內，圍口部僅有步帶板，大棘不很大，無外皮層，有球棘； 3 ）脊齒目（ stirodonta ）有齒器，圍肛部在頂系內，齒器的齒有脊，橈骨片在齒上方不相接，顎孔開放； 4 ）管齒目（ aulodonta ）齒器的齒無脊，圍肛部在頂系內； 5 ）拱齒目（ camarodonta ）有齒器，圍肛部在頂系內，齒器的齒有脊，橈骨片在齒上方相接，顎孔封閉； 6 ）全雕目（ holectypoida ）有齒器，但不發達或完全被吸收，圍肛部在頂系外，步帶不形成瓣狀和葉鰓； 7 ） ?形目（ clypeasteroida ）齒器發達，圍肛部在頂系外，步帶形成瓣狀，無葉鰓； 8 ）蝟團目（ spatangoida ）無齒器，圍肛部在頂系外，葉鰓發達，步帶形成瓣狀。Based on the tribological principle and the theory of contact mechanics, it is feasible to adopt curvature - changing structure in the rock - bit journal bearing system. the structure and coupling relationship of curvature - changing journal bearing under the condition without friction have been analyzed and three kinds of sub - form structure configurations, namely, the pseudo - curvature - changing structure, the conformable curvature - changing structure, and the clearance curvature - changing structure, been differentiated according to the contacting features. the shape optimization and pre - running - in regulations of the contact surface of curvature - changing journal bearing under friction condition have been established. the results of rock bit journal bearing test indicate that the tribological behavior of the bearing can be effectively improved by curvature change based on both designing and pre - running - in
基於摩擦學原理和接觸力學理論，提出了可在牙輪鉆頭滑動軸承中採用變曲率結構.在不考慮摩擦的情況下，就結構設計和配合關系等問題進行了分析討論，劃分了準變曲率、吻合變曲率以及間隙變曲率等3種結構形式；針對考慮摩擦時的變曲率結構，提出了接觸形狀優化和預磨合的實施方案.鉆頭軸承試驗結果表明，無論是預設計變曲率還是預磨合變曲率，都能改善軸承摩擦副的摩擦學特性，因而值得進一步研究和推廣Application : in loading and unloading, the lifter can hoist iron steel block, cylinders and others onto magnetic materials for linkage or connection. it is very convenient for application in loading, unloading, and moving. pmqzq permanent magnetic lifters are the most ideal lifting facility for factories, docks, warehouses and transportation
起重器主要在吊裝過程中，對塊狀圓柱形及其它部件導磁性材料工件的連接，對裝卸搬運十分方便，是工廠碼頭倉庫交通運輸各行業的最理想吊裝工具。Longgang nature reserve plays an important role in preserving two langur species of both white - headed langur and francois langur. interview and field survey methods were used to survey the distribution and population size of these two langurs in this natural reserve from december 2001 to january 2002. the result indicated that the reserve has 8 groups of white - headed langur with 68 individuals in longrui and 10 groups of francois langur with 75 individuals in longgang. the distribution area and population size of both of the two langurs in this reserve have greatly declined in the past decades. they are seriously threatened and have high risk of disappearance from this reserve if no effective measures are to be taken at once
為了確定弄崗自然保護區內白頭葉猴的種群數量，彌補黑葉猴種群數量的空白，掌握此保護區葉猴的生存現狀，採用訪問法和實地數量統計法相結合的方法對弄崗自然保護區的弄崗、隴瑞和弄呼3個部分進行深入的調查研究.調查結果表明，在隴瑞片范圍內，共有8群白頭葉猴，種群大小在68隻左右，和20世紀80年代末的244隻相比，數量下降相當驚人;在弄崗片內，共記錄到黑葉猴群10群，最大的種群為11隻個體，最小的種群是4隻個體，共計約有75隻黑葉猴（絕對數量統計） ;弄呼的黑葉猴種群已經于上個世紀的晚期消失.造成目前狀況的因素主要是過度狩獵和其他形式的過度干擾.弄崗自然保護區的葉猴種群數量已經接近可持續繁殖種群的最低水平，如不採取有效的保護措施，這個種群將很可能在短期內消失Shape, size, site, color, and inlet and outlet slope of page nexto page
頁連接符號的形狀、大小、位置、顏色、進出箭頭。The exchange meeting makes it possible that members have close contact with the inner parts of mysterious computer case, seeing the real appearance and observe the making up and breaking up, as well as the position of all parts and the ways of setting up, including the shape of wire end and the function of each wire
通過這次交流會大家有機會近距離接觸了計算機神秘機箱的內部，看到其真實的面貌，並仔細觀摩了組拆，包括各部件的位置與安裝方法，還有連線接頭形狀與各線的作用。T - jumper for tubular connector
管狀接頭t形搭接線T - jumper for flaky connector
片狀接頭t形搭接線These rules consist of the total fit, the mathematics and fatigue physics, and the safety in tail predictions. an analysis of the test s - n data of 16mn steel weld joints reveals that the four models are reasonable if only considering the total fit as the conventional method did. but if by the present three rules, the appropriate models should be the normal or the extreme maximum value
根據先前提出的有限數據下良好假設分佈的確定方法，包括三個原則，即假設分佈形狀與誤差數據真實分佈形狀的一致性、預測的總體擬合效果、與疲勞失效機制的一致性和尾部預測的安全性，通過對線性均值s - n曲線擬合16mn鋼焊接頭s - n數據誤差的統計分析，說明應用一般推斷方法， 4種分佈都可合理地作為數據的統計模型，綜合考慮三原則后，極大值和正態分佈是可能的良好假設分佈。With its merits of low cost, convenient installation, no leak, long lifespan and so on, the product is mainly used as the fuel pipe for the automobile oil supply and return system
本產品可根據用戶要求製成各種形狀，可以匹配各種接頭，主要用於汽車供油，回油系統，作燃油管使用。Designed in the fittest shape, applied in the range of power : 50w - 1kw 100khz, cut down installation cubage with multi - plugs and boobins, easily wire connection to meet the request
按最適宜的形狀進行設計，能在50w - 1kw 100khz范圍內使用。減少了元件實際安裝時的體積和在基板上所佔的面積備有各種帶插頭的線圈架，接線操作十分方便，容易符合安規的要求。The fracture energy of cu / - aiodiffusion - welded joints was greatly increased by the introduction of the thin film nb interlayer whereas diffusion welding can be performed at a relatively low temperature ( 900 ). the increase in fracture energy of the joints with nb film interlayer was attributed to the strong abhesion of nb to - aio combined with larger plastic deformation in the metal side during fracture tem observations showed large amounts of dislocations existing at the interfacial regions
本文主要內容就是概括地介紹了國內外關于擴散連接接頭行為數值模擬的發展現狀；主要包括界面孔洞消失過程、接頭元素擴散與反應層的形成、接頭變形與應力行為的數值模擬，以使人們能夠定性或半定量的分析擴散連接因素對接頭性能的影響。These lenses consist of droplets that can alter their focal properties by changing shape in response to a voltage applied to a surface with which they are in contact
這類鏡頭由小水滴構成，改變施加在接觸面的電壓，就可改變水滴的形狀，進而調整聚焦特性。In this paper, the relaxation resistance at high temperature of the nitinb alloy and its recovery characteristics with various constrains were studied, subsequently the mathematic model for the strength of the nitinb pipe connector was proposed to investigate the temperature dependence of the strength of the connector, and optimal design for the pipe coupling was brought forward
本文主要研究了nitinb合金高溫下的抗鬆弛性能，以及nitinb形狀記憶合金在各種約束下的回復特點，然後利用固體力學知識，建立了nitinb管接頭系統強度的數學模型，研究了管接頭系統強度隨溫度變化的規律，並對管接頭進行了優化設計。It provides a theoretical proof for the choice of the welding joint sectional shape and dimension, and for increasing the length of life and stability of the weld structure, and for design and manufacture in the weld structure
為合理地選擇焊接接頭截面形狀和尺寸，提高焊接結構的使用壽命和安全穩定性以及焊接結構的設計和製造提供了一定的理論依據。Major : material science postgraduate : zhou xuchang advisor : zeng guangting huo yongzhong as a new type of shape memory alloy pipe coupling, nitinb pipe coupling has a good prospects on the connecting pipe. the study on the strength of nitinb connnetor system and design to optimize its structure have great meaning to its application on the connecting pipe of the steam maker in nuclear reactor on naval vessels
Nitinb管接頭是一種新型形狀記憶合金管接頭，在管路連接上有著良好的應用前景。研究管接頭系統的強度並對其結構優化設計對它在艦艇核反應堆蒸汽發生器的管路連接上的應用有著重要的意義。分享友人