mass point 中文意思是什麼

mass point 解釋
取樣點
  • mass : n 彌撒；彌撒的儀式[禱告、音樂]；彌撒曲。 a high [solemn] Mass （有燒香、奏樂等的）大彌撒。 a low ...
  • point : n 1 尖頭，尖端；尖頭器具；〈美國〉筆尖；接種針，雕刻針，編織針；小岬，小地角；【拳擊】下巴。2 【...
  1. Newton's law of motion as applied to the point mass is the well-known vector equation: f=ma.

    牛頓運動定律應用於質點時就得到這樣一個著名的向量方程式：Fma
  2. In this thesis, based on pershing ii surface to surface missile, a new kind of ballistic missile was designed with an additional rocket engine, which can be ignited twice. firstly, aerodynamic computational models of missile body and warhead which reentry with supersonic are built according to the task requirements ; secondly, the propulsion system model of missile is built whose first two stages are solid rocket engines and the third stage is liquid - solid combined rocket engine. the nozzle and the shape of the engine are designed to meet the needs of the populsion project ; thirdly, the trajectory model of the mass point is built and a wavy trajectory is designed & optimized ; finally, the ability of a missile ' s breaking through defence is analyzed

    以美國潘興導彈為原型，增加可兩次點火的末級發動機，改裝成具有跳躍能力的地地彈道導彈；首先，根據任務需求，建立了導彈的氣動模型，並建立了彈頭再入時高超聲速氣動模型；其次，建立了導彈推進系統模型，前兩級採用了固體火箭發動機，第三級採用了固?液組合火箭發動機，並在總體方案要求下，對發動機噴管和外形進行了設計；第三部分，建立了導彈質點彈道模型，設計了一條跳躍式彈道，並對跳躍式彈道進行了優化設計；最後，對導彈進行了突防能力分析，從分析的結果可以看出，跳躍式彈道的突防能力比常規的拋物線彈道要強。
  3. The specific mass distribution also allows the edge to deliver deep cut into the bone even with just a wrist - powered " point " attack, not to mention the less often executed but extremely powerful full arm cutting motion

    而且這種重量分佈，讓只以手腕發動的點也能擊進骨頭里去，更別說是比較罕見但威力驚人的全力斬擊，絕對能夠一劍移除對方一條肢體。
  4. In this thesis, studies are focused on as follows : ( 1 ) based on analyzing the general transfer - matrix, the conception of the generalized double layer soil model is proposed, and the transfer - matrix ( r ) of half - infinite elastic mass is introduce - d to the analytic expressions of stress and settlement under the uniform circular, rectangular and strip vertical loads in multi - layered soil ; ( 2 ) according to the analytic expressions of the additional stress and settlement under unifo - rm circular in multi - layered soil, rectangular and strip vertical loads, the programs are develop - ed to resolve and debugged. the results show that the programs are correct ; ( 3 ) through calculating the coefficient of additional stress on the central axis of uniform circ - ular vertical loads, under the corner point of the uniform rectangular vertical loads, and on the central axis of uniform strip vertical loads, and the settlement on the center of uniform circular vertical loads and uniform rectangular loads in double - layered soil, the characters of stress and settlement are discussed ; ( 4 ) a case, as an example, is studied with different calculation methods, such as traditional theory, fem. the results obtained are compared

    本文在已有研究成果的基礎上進一步開展了以下幾方面的研究： （ 1 ）在對層狀地基傳遞矩陣法中的總傳遞矩陣分析的基礎上，提出了廣義雙層地基模型的概念，並把半無限體的傳遞矩陣r引入到多層地基在圓形垂直均布荷載、矩形垂直均布荷載及條形垂直均布荷載作用下附加應力與沉降的解析式中； （ 2 ）根據多層地基在圓形荷載、矩形垂直均布荷載及條形垂直均布荷載作用下附加應力與沉降的解析式，編制了程序，調試通過並驗證了其正確性； （ 3 ）通過對雙層地基圓形垂直均布荷載中心軸線上的附加應力系數和荷載中心沉降，矩形垂直均布荷載角點下的附加應力系數和荷載角點沉降及條形垂直均布荷載中心軸線上的附加應力系數進行的計算，探討了雙層地基中的附加應力與沉降特性； （ 4 ）應用本文的層狀地基體系理論對一個工程實例進行了計算分析，並與傳統的計算方法的計算結果和有限單元方法的計算結果進行了對比分析，結果表明利用層狀地基理論計算更能反映地基中附加應力分佈的實際情況。
  5. In this experiment, the quantity change of partial pressure of main elements is given by longtime dynamic measuring of metal dewar exhausting with quadrupole mass spectrometer ( qms ), the results show that exhausting technology influences outgassing of dewar vacuum vessel, this paper gives the theory, equipment, method, data and disturb fators, we also give primary investigation how the main gases affect the vacuum integrity of dewar and point out the possible ways which can be applied to present technology

    摘要實驗研究用四極質譜儀對金屬杜瓦排氣進行長期動態監測，跟蹤內部主要氣體成分的分壓強的大小變化，得出排氣工藝對杜瓦內表面放氣量大小的影響，介紹了實驗的原理、裝置、方法、數據和干擾因素，對影響杜瓦真空度的主要氣體成分進行了初步研究，提出改進杜瓦排氣工藝的可能方向，對工藝處理具有實際意義。
  6. The domestic and foreign theorists have made some new progress to the enterprise competition strategy research, and the article summarized their main competition strategic concepts, made the comparison or the definition between the traditional classical theory viewpoints and the new thoughts, and elaborated their major points : multi - point competition, strategy synergy, time - based competition, mass customization and co - opetition, as well as the enlightenment the new thoughts give us

    國內外理論界對企業競爭戰略的研究有了一些新的進展，文章對其主要競爭戰略思想進行綜述，並對傳統的經典理論觀點與新思想進行比較或界定，闡述其主要觀點：多點競爭、戰略協同、時基競爭、大規模定製及「合爭」 ，並分析新思想所帶來的啟示。
  7. This part introduces the current situation and issues of tourism advertisement of our country, analyses the basic principles of tourism advertising marketing ; partly originally and ; in advertisement effect analysis and judging of focusing mass attention analyses contributions to the causing masses " attention of media. by the form of market questionnaire investigation draws to some laws of concerning media in jinan and popularizing schemes of media in japanese which is our main guest country ; at last determines and appraises the advertising result by the methods of selling achievement determining and gain - lose equalization point

    本部分介紹了我國旅遊廣告的現狀和問題，分析了旅遊廣告營銷的基本原理；在廣告聚斂公眾注意力的效果分析與評判中分析了媒體對引發公眾注意力的貢獻，採用市場問卷調查的形式得出濟南公眾對媒體的關注規律和對主要客源國日本的媒體推廣方案；最後用銷售成果測定法和虧盈平衡點法對廣告效果進行測定和評價。
  8. This kind of high silica wrought aluminum alloy is provided with low density and well heat - stability, especially with the metallurgical structur ? similar with bearing alloy ? which is composed of dispersion distribution common silicon crystal hard mass point and the alloyed basal body is very fit for the components manufacture ? can bear small capacity moving load and friction load

    這種高硅變形鋁合金具有密度小和200以下良好的熱穩定性，特別是它的由彌散分佈的共晶硅硬質點及合金化的相基體組成的類似軸承合金的金相組織、特別適合用於製做承受小能量動載荷和摩擦載荷的零件。
  9. In chapter 2, author points out firstly that the elastic deformation of elastic units of a robot ' s wrist force sensor will be enlarged by the end - effector, the instruments and the work pieces, so the elastic deformation of the sensor will influence the location accuracy or kinetic accuracy of end point of a robot, under the condition of that the robot technology facing the developing of heavy load, light mass and high accuracy. it is discussed respectively that the relationship between the differential kinemics in the sensor ' s coordinate and the location accuracy or kinetic accuracy of the end point. error matrixes of location and kinemics of the end point are presented respectively based on the differential kinemics in the sensor ' s coordinate, and the on - line error compensation methods are introduced subsequently

    第二章首先指出機器人腕力傳感器彈性體的彈性變形經過機器人末端連桿、工具、工件等的放大后，會對機器人末端精確定位和運動產生的影響；然後分別研究了傳感器坐標系內的微分運動與機器人末端工件精確定位、運動的關系；在此基礎上，研究了基於腕力傳感器彈性體微分運動的機器人末端定位、運動誤差的誤差矩陣及其在線誤差補償方法；基於機器人動力學的機器人末端定位、運動誤差的誤差矩陣及其在線誤差補償方法；最後，以puma型機器人為對象，給出了基於腕力傳感器內微分運動的機器人末端定位、運動誤差及其在線補償方法的模擬實例：給出了基於機器人動力學的機器人末端定位、運動誤差及其在線補償方法的模擬實例；模擬結果表明， 1 ）基於腕力傳感器的機器人末端定位誤差在腕力傳感器允許的載荷下可達十分之幾毫米級。
  10. All the results can be utilized by engineers, during the designing and construction. the main conclusions are listed as follows : ( 1 ) based on the shortest line between weak interbed and limit of excavation and the location of point of intersection between limit of excavation, classification of weak interbed distribution is set up, and the distance of distribution is defined ; ( 2 ) according to the strength and deformation equivalent principle, influence zone of weak interbed is introduced, and a new method to simulating the weak interbed with thickness is built ; ( 3 ) some quantificational results on influence of weak interbed respectively at crown, right shoulder and right wall are summarized ; ( 4 ) some quantificational results on influence of weak interbed with the distance between weak interbed and limit of excavation 0. 2d, 0. 5d, l. od are gained ; ( 5 ) some quantificational results on influence of weak interbed in the rock mass with confining coefficient 0. 38, 1. 0, 1. 5, 2. 0, 3. 0 are summed up ; ( 6 ) some quantificational results are summarized on influence of the underground surrounding rock mass stability with weak interbed, in the representational surrounding rock mass graded ii, iii, iv ; ( 7 ) according to the studying results some advices are suggested on designing of underground engineering

    主要結論如下： （ 1 ）以軟弱夾層到開挖輪廓線最短距離和最短距離線與開挖輪廓線的交點位置為指標對軟弱夾層的分佈部進行了分類，並確定了軟弱夾層分佈距離； （ 2 ）根據強度等效和變形等效的原則，引入了軟弱夾層影響帶的概念，建立了模擬軟弱夾層厚度的一種新方法； （ 3 ）總結出了軟弱夾層分佈在拱頂、右拱肩、右邊墻時對地下洞室穩定性影響的量化指標； （ 4 ）分析出了軟弱夾層距開挖輪廓線0 . 2d 、 0 . 5d 、 1 . 0d三種情況對地下洞室穩定性影響的量化指標； （ 5 ）總結出了在不同的側壓力系數（ 0 . 38 、 1 . 0 、 1 . 5 、 2 . 0 、 3 . 0 ）地應力場中軟弱夾層對穩定性影響的量化指標； （ 6 ）得出了在、 、代表性圍巖中軟弱夾層對穩定性影響量化結果； （ 7 ）根據數值試驗成果提出了在有軟弱夾層圍巖中地下洞室設計原則的幾點新內容。
  11. And taste, which i refined to the point where i have had drinks that taste of window, old bread that tastes of trunk, infusions that taste of mass

    我的味覺也被提升了。從飲料中我嘗到玻璃的味道，放久了的麵包有樹乾的味道，浸劑有彌撒的味道。
  12. Newton ' s law of motion as applied to the point mass is the well - known vector equation : f = ma

    牛頓運動定律應用於質點時就得到這樣一個著名的向量方程式： f ma
  13. After our careful analysis, we find that there are finite part which is temperature dependent in this zero - point energy. so we have separated this part and discussed its influence to the effective nucleon mass. the result shows that this part has remarkable contribution at high temperature

    但經仔細分析會發現，零點能中含有與溫度相夫的有限部分，我ilte它分離出來並討論了其xde子有效質量的影響，發現在高溫下，這一零點s眶正有著顯著的貢獻
  14. From the mass communication point of view, this essay analyzes the causes of the formation of the public opinion and maintains that the public opinion results from the following three factors : esquire class controlled the mass media ; newspapers and periodicals served as an important medium for the formation of the public opinion of " destroying the treaty and protecting the road " ; the public prejudice and social psychology of stereotype

    「破約保路」輿論的形成主要是以下三方面因素綜合作用的結果：一、士紳階層很大程度上控制了大眾媒介；二、報刊是形成「破約保路」輿論的重要媒介；三、公眾的成見與從眾的社會心理。
  15. If the focal point of the len shifts around the surface of the sample, the mass ablation, the temperature of the plasma and the spectral intensity appear asymmetric and their maximum occur at the location which is about 0. 4mm under the surface of the sample. ( 2 ) to the plasma of the aluminum alloy sample, when the operating voltage is 1600v, the height from the observed location of the plasma to the surface of the sample is 2mm and the argon pressure is 660 torr, the spectral intensity have the maximum values

    （ 2 ）對于標準鋁樣品，在激光器工作電壓為1600v 、等離子體觀測高度為2mm 、氬氣壓力為660乇時，其譜線強度最強；以al 308 . 22nm 、 al 309 . 27nm兩條譜線為分析線，發現隨著環境氣壓的增大，譜線自吸效應明顯增強，當環境氣壓達到600 - 700乇時，譜線幾乎產生自蝕。
  16. The origin is located on the axis at the point closest to the center of mass.

    原點坐落在轉軸上最靠近物體質心的一點。
  17. Last, the z - map mass point model is researched

    最後，對z - map點雲模型進行了研究。
  18. Analysis of vibrational characteristics for an equipment composed of a mass point and a rigid body

    一種質點和剛體組合的非線性振動分析
  19. Toward different surgery simulation request, we simplify human soft tissue to linear model, nonlinear model, or stiff / elastic model. using stiffness coefficient, damping coefficient, and mass point density to represent the characters of stiff / elastic, anisotropy, and non homogenous of soft tissue

    對應于不同的虛擬手術模擬要求，將人體軟組織簡化為線性、非線性、粘彈性物理模型，採用組織的彈性模量、阻尼系數、密度等物理特性表徵軟組織的粘彈性、各向異性、非均勻性等特性。
  20. The main research is as follows : analyze and research the characteristic of the crank - connect rod mechanism of the single - cylinder internal - combustion engine, the mathematical model of three - mass point has been established and the program of its inertia force and moment has been designed

    研究工作主要包括以下內容:針對單缸內燃機活塞-連桿-曲柄機構的特點，運用運動學和動力學理論對其進行分析，建立了單缸內燃機的兩質點和三質點模型，推導出單缸內燃機不平衡慣性力和慣性力矩的數學模型。
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