螺旋鍵 的英文怎麼說
中文拼音 [luóxuánjiàn]
螺旋鍵
英文
key screw- 螺 : 1. [動物學] (軟體動物) spiral shell; snail; conch 2. (螺旋形的指紋) whorl (in fingerprint)
- 旋 : 旋Ⅰ動詞1 (旋轉) whirl 2 (用車床切削或用刀子轉著圈地削) turn sth on a lathe; lathe; pare Ⅱ名詞...
- 鍵 : 名詞1 [機械工程] (使軸與齒輪、皮帶輪等連接並固定在一起的零件) key 2 [書面語] (插門的金屬棍子)...
- 螺旋 : 1 (具有螺紋的圓柱體 屬于斜面類的簡單機械) corkscrewspin; screw; spiral; helix 2 (螺旋現象;尾旋...
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This article takes the lagrange equation as the principle, establishes mathematics modeling to the inertia brake vibration when it brakes, then simulates it with matlab. this paper educed the relation equations between, which are the inertia brake ' s friction coefficient of the brake ring and the friction disk, the mean radius, the braking force, rotation inertia of the driving top and the spline shaft, spiral climbing angle of the brake ' s concave - convex helicoid, the mean effort radius of the concave - convex helicoid, elasticity coefficient of the spring, quality of the driving top and the spline shaft, rotations inertia of the brake ' s rotation part besides the driving top and the spline shaft, suppresses sleeve. provides the theory basis for the inertia brake structure optimization
本文以拉格朗日方程為理論基礎,對慣性制動器在制動時的振動進行數學建模,然後用matlab對其進行模擬,得出了慣性制動器在制動時振動角頻率分別與制動環和摩擦片之間的摩擦系數、制動力的平均半徑、主動頂和花鍵軸的轉動慣量、慣性制動器的凹凸螺旋面的螺旋升角、凹凸螺旋面平均作用力的半徑、彈簧的彈性系數、主動頂和花鍵軸的質量、慣性制動器除主動頂和花鍵軸外其他部分的轉動慣量和、頂壓套的質量等慣性制動器各零部件的物理參數之間的關系,為慣性制動器的結構優化提供了理論依據。By applying the th model theory to analyzing the cases of developed countries that mentioned in chapter 4, chapter 6 finds out the block gene and tendon compages that consists of the university - government - industry th. furthermore, it gives the pheno - types as some external expressions of the genotypes and the family - tree diagram constituted by these phenotypes. after a transition, it illuminates the scientometric, the webometric and the triple helix algorithm and their application
第六章運用th模型理論對第四章提供的案例挖掘梳理后,發現並給出了:構成大學?政府?產業三重螺旋體的完整板塊配基和鍵鏈組合,作為「基因型」外在表達的一些「現象型」屬類以及由它們所構成的圖式譜系。The design objective, composition and function of computer monitoring and alarming system for low pressure water - sealed spiral gasholder are described, and the key technologies of the system are discussed
摘要闡述了低壓濕式螺旋儲氣罐的計算機監測報警系統的設計目標、組成及功能,探討了系統的關鍵技術。The polynucleotide chain is helical.
多核苷酸鍵是螺旋形的。Hydrogen bonding between successive coils holds the helix together
氫鍵維持著螺旋的穩定。If the alpha helix is astretched the hydrogen bonds are broken but reform on relaxation
如果螺旋中的氫鍵被破壞,螺旋的穩定就不能維持。Abstract : the effects of terbium ion on the conformation of calmodulin and on the interaction between calmodulin and melittin have been studied by the endogenous fluorescent spectrometry of calmodulin and melittin, and the sensitized fluorescent spectrometry of terbium ion, respectively. the results show that terbium ions have a tight binding site in the i and ii metal - binding sites of calmodulin. the conformation of calmodulin induced by terbium ion can bind melittin and transfer the tryptophane residue of melittin to a relatively hydrophobic environment, while the binding of melittin to calmodulin produces effect on the binding orders of terbium ion in camodulin. results from ft - ir spectrometry have revealed that upon binding of lanthanum ion, apo - calmodulin undergoes a conformational change with the increase of - helix content and the decrease of - sheet content. melittin ' s binding to calmodulin has no effect on its conformation induced by the binding of lanthanum ion to calmodulin
文摘:分別用鈣調蛋白和蜂毒素的內源熒光光譜以及鋱離子的敏化熒光光譜考察了鋱離子對鈣調蛋白構象變化以及對鈣調蛋白與蜂毒素相互作用的影響.結果表明,鋱離子首先結合在鈣調蛋白的第和第位點,鋱離子不影響鈣調蛋白與蜂毒素的相互作用,蜂毒素與鈣調蛋白作用后不影響鋱離子在鈣調蛋白上的鍵合順序.傅里葉變換紅外光譜結果表明三價的鑭離子與鈣調蛋白作用使鈣調蛋白的螺旋結構增加,折疊結構減少,與鈣離子對它的二級結構影響相類似.稀土離子在鈣調蛋白-蜂毒素復合體系中主要與鈣調蛋白作用Based on the kinematical design criterion of equi - chord percent ratio and spatial rigid body guiding mechanism, three theoretical design methods of arc track, non - arc track, and helical track are proposed in this thesis, meanwhile, different design methods about prime flap and sub - flap driving mechanisms are completed. three cases of different three - gaps - fowler - flap tracks are designed
對后緣三縫富勒襟翼工作時的3個關鍵位置,按照「等弦長百分比」運動的設計準則和空間剛體引導機構的設計思路,提出了圓弧軌道、非圓弧軌道和螺旋線軌道等3種空間位置引導軌道的設計原理,並分別給出主襟翼和子襟翼驅動機構的不同設計方法。The extracellular 100pl ( ecl1 ) and ecl2 was linked by disulfide bond to maintenanced the stability of the protein secondary structure. in recent years, we showed that ccr5 as a co - receptor could interact with hiv - 1 infect ion. ccr5 was paid closed attention to since it was cloned in 1996. the aim is to - obtain the sequence of first extracillular domain of 3 chemokine receptor 5 ( ccr5 ) n - terminal gene fragment with high level expression in e. coli and to prepare its specific antibody f ( ab ' ) ;, and its detected method
Ccr5具有g蛋白偶聯受體家族( g - proteincoupledreceptors , gpcrs )所特有的7個跨膜區( transmembrinedomains , tm ) ,呈螺旋, tm的氨基酸有很高的保守性,膜外第一襻( extracellularloop1 , ecl1 )和ecl2之間有二硫鍵相連,以維持蛋白質二級結構的穩定性。For chitosan, when the concentration of chitosan is under 0. 1mg / ml, the structure of molecular chain can be observed by afm. at the same time, the refined structure of lyotropic liquid crystal of chitosan and the changes of structure were studied. films with liquid crystalline texture can be prepared from diluted solutions which concentration is lower than critical concentration of liquid crystal
對于殼聚糖( chitosan ) ,通過afm直接對殼聚糖進行分子結構水平的觀察研究,發現在濃度低於0 . 1mg ml的稀溶液中用afm可以清楚觀察到糖鏈間形成的環狀或螺旋結構,以及鏈內側枝繞合排列的樹枝狀結構,這種現象是由於糖鏈間和糖鏈內的氫鍵締合所致。The cold extrusion forming technique of female screw spline
內螺旋花鍵冷擠壓成形工藝All kinds of helical poles are extensively used in the fields of petroleum, chemical engineering and so on
在石油、化工等行業中,廣泛使用各種螺旋桿機械,其中的螺旋轉子製造技術則是多年來一直困擾其發展的關鍵難題。Shipbuilding. shaft lines. keys and keyways for tapers on propeller - shafts. diameters 100 mm to 680 mm. alternative
造船工業.軸線.直徑為mm mm的螺旋槳軸上錐形體的鍵和鍵槽.可選擇的With vrml techniques, the process of co - rotating twin - screw machining is simulated based on the theory of machining with milling cutter, and the machining simulation theory and its key techniques are discussed. the mathematic model and computation are proved correct and feasible through cutting experiment and the model is now applied in practice
該方法和技術可以有效的支持同向雙螺桿圓柱螺旋面的加工刀具的優選。並在用圓柱立銑刀加工同向雙螺桿的理論基礎上,利用vrml技術,對加工過程及其理論誤差進行了模擬,討論了模擬加工的原理和關鍵技術。The simulations get the variation curve of the torque acted on the helical gear spline during translating process, and get the important damping force acted on the middle part during engaging and disengaging process
模擬還求得了作用在螺旋齒花鍵上的扭矩在動態過程中的變化曲線;求得了作用在中間件上,起關鍵作用的阻尼力在嚙合、脫開中的動態變化曲線。( 2 ). according to the system indices and requirements together with the technology characteristic, it researches the capture possibility of apt capturing system. then it introduces the common scan methods, such as raster, spiral, raster spiral, rose and lissajo. ( 3 ). it makes a detailed simulation analysis of the raster and spiral scan, analyze the connection between capture probability, capture time, system index at different capture resolution angle, capture range, vibration angle extent and terminal location distributing mean square deviation
其中對幾個關鍵部分進行了詳細分析:計算了目標角反射器的激光雷達散射截面( lrcs )值,研究了qd與ccd對目標位置角度的計算方法和空間解析度; ( 2 )根據系統指標和要求並結合現有國內技術特點研究了apt捕獲系統掃描的捕獲概率問題,然後分析了幾種常見的掃描方式:矩形( raster )掃描、螺旋( spiral )掃描,矩形螺旋( rasterspiral )掃描,玫瑰形( rose )掃描以及李薩如形( lissajo )掃描; ( 3 )對分行掃描和螺旋掃描進行了詳細的模擬分析,分析了它們在不同捕獲分辨角、捕獲范圍、振動角振幅和終端位置分佈均方差時的捕獲概率、捕獲時間與系統常數之間的關系。This paper describes structure, working principle, application and key technologies of screw driven circular conveyor line
摘要對螺旋驅動的環形輸送線系統結構、工作原理、使用效果及技術關鍵問題作了詳細介紹。Shipbuilding. shaft lines. keys and keyways for tapers on propeller shafts. diameters 110 mm to 680 mm
造船工業.軸線.直徑為mm mm的螺旋尾軸錐形體的鍵接At an early stage in the evolution of the high - speed diesel a variable timing device was introduced in the pump drive coupling, taking the form of a helically splined coupling by means of which the angular relation between driving and driven shafts could be varied by manual or automatic control
翻譯:在高速柴油機發展的早期,可變的正時裝置被引用到油泵驅動聯軸節上,採用螺旋式花鍵套管的形狀,驅動軸和從動軸之間的相對角度可以通過手動或自動控制進行改變。From the above it will be realised that fundamental difference between petrol and diesel engines is that in the petrol engine the source of heat for igniting the charge, namely an electric spark, is generated outside the engine, and is taken, as it were, into the waiting charge at the required instant
翻譯:在高速柴油機發展的早期,可變的正時裝置被引用到油泵驅動聯軸節上,採用螺旋式花鍵套管的形狀,驅動軸和從動軸之間的相對角度可以通過手動或自動控制進行改變。分享友人