point pressure 中文意思是什麼

point pressure 解釋
點壓力
  • 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 【...
  • pressure : n 1 壓;按;擠;榨。2 【物理學】壓力,壓強;大氣壓力;電壓。3 精神壓力,政治[經濟、輿論等]壓力。4...
  1. Introducing the theory and application of boundary element method on the sound radiation, giving the process of solving vibration noise radiation problem using boundary element analysis software ; presenting the coupling theory and the combination analysis of finite element method and boundary element method, and doing relevant analysis based on close drum shell ; programming the noise data simulation program using the numerical calculation software, simulating the acoustic and pressure data of a key point in the transient response acoustic field of the close drum shell, realizing the audibility of the noise, using the virtual reality tools to simulate the vibration noise of the drum shell ; combining the finite element method and boundary element method to analyze the vibration noise radiation of some gear box, and completing the whole simulation process of the vibration noise of the gear box

    綜合介紹了邊界元法在聲輻射問題上的理論及應用;並給出了運用邊界元法分析軟體求解振動聲輻射問題的過程。闡述了有限元法和邊界元法的耦合理論及組合分析方法,並以封閉鼓形薄殼為分析對象進行了相應的分析。利用數字計算軟體編制了噪聲數據模擬程序,並模擬了通過組合方法分析封閉鼓形薄殼瞬態響應聲場而獲得一關鍵點的聲壓數據,實現聲音的可聽化,隨后通過虛擬現實工具實現了該情形下橢球殼振動噪聲的虛擬模擬。
  2. In view of bearing capacity of the elastoplastic theory analysis, the author made a comparison between the achieved bearing capacity limit load pi / 4 of round base ( space problem ) and the limit load pi / 4 of bar groundwork foundation design ( plane problem ) from soil mechanics at home and abroad as well as foundation criterion, and explained why the value of formula in present design criterion from soil mechanics is inclined to be conservative. in the light of the author ' s many years experience of vibration test on the spot and the research work of relevant projects, the author worked over the dynamic pile testing of the bearing capacity of foundation and batholith, and gathered the parameter of dynamic analysis and testing. the author also talked over the difficult point of pile foundation design criteria in present batholith engineering world, i. e. the confirmation of batholith bearing capacity of pile end, from the following aspects : a ) confirmation of single axis counter - pressure strength of rock in house ; b ) f. e. m calculation of elastoplastic model ; c ) calculation of soil mechanics ; d ) deep well load test

    然後,對巖土工程領域至今尚未解決,甚至不為人注意的考慮地基變形的地基承載力問題進行了實用化的探討,提出了考慮地基變形的地基承載力上程計算方法;對基於彈塑性理論分析的地基承載力國內尚未見報道的空間問題得到了圓形基礎(空間問題)的承載力界限荷載p _ ( 1 / 4 ) ,並與國內外土力學專著及地基基礎設計規范中的條形基礎(平面問題)的界限荷載p _ ( 1 / 4 ) ,進行了對比,從而定量上解釋了目前設計規范引用土力學承載力公式值偏於保守的這一情況;根據本文作者多年從事現場地基工程振動試驗及相關課題的研究工作,本文以截頭錐模型模擬地基,對地基(巖基)承載力的動測法進行了研究,為各類地基(包括巖基) ,匯總了動力分析和檢測川的參數:針對日前巖土工程界應用樁基設計規范中的難點? ?樁端巖基承載力的確定問題,從巖石室內單軸抗壓強度確定、基於彈塑性模型的有限單元法計算、土力學計算及深斤載荷試驗四方面進行了深入討論;本文作者根據多年現場載荷試驗的工程實踐,對深井荷試驗裝置的核心部分? ?反力裝置,設計了側壁支撐反力加載系統,該加載系統具有實用、簡便、穩定及安個等優點。
  3. If the pressure is low, the boiling-point is low.

    如果大氣壓力低,沸點就低。
  4. This paper deriving the theory work inflection point in the static stage characteristics curve of small measurement range linear dimension measurement. by the way of high pressure and back pressure pneumatic measure and designed the parameter of the mainly and measure spray head, which are the key component in the spray head - baffle pneumatic sensor. the different groups for the main - spray head and the measure spray head, will effect the dynamic and static stage characteristic parameter. the author have done contrast experiment and optimization design to test and verify the theory derivation whereby made the rang of show valve of pneumatic measure system measure range up to 40 u m, the sensitivity up to 100mv / u m, resolution up to 0. 05 p m, the uncertainly of measure is less than 0. o2 u m, satisfaction of requirement of groups the carboy hatch thickness size precise measure of soft shims

    對高壓背壓式氣動測量用於小量程線性尺寸測量的靜態特性曲線的理論工作拐點進行了推導,對氣動測量系統中的噴嘴-擋板型氣動傳感器中的關鍵部件? ?主噴嘴和測量噴嘴的參數進行了理論設計,對主噴嘴和測量噴嘴的不同組合,將影響測量系統靜、動態特性指標的噴嘴參數進行了對比實驗和優化設計,並通過實驗驗證了理論推導,從而使氣動測量系統量程的示值范圍達到40 m ,靈敏度達到100mv m ,解析度達到0 . 05 m ,測量不確定度小於0 . 2 m ,滿足了壓縮機缸蓋軟體墊片厚度尺寸精密測量分組的要求。
  5. The advantage and disadvantage of measurement of propeller - induced pressure by using different equipment is discussed. the method to obtain self - propulsion point for full scale in depressurized towing tank is studied. the measurements of pressure of two propeller models are carried out, the results of the measurement agree with those obtained by cavitation tunnel very well, which proves this measurement is successful, and the theoretical prediction is verified too

    比較了不同測試設備用於螺旋槳脈動壓力測試的優缺點,探討了在減壓拖曳水池中實現實船自航點的方法,並進行了兩只螺旋槳模型的脈動壓力測試,經與空泡水洞中脈動壓力的測試結果進行比較,說明該項測試是成功的,同時也對脈動壓力的理論預報結果做了驗證。
  6. By means of special designed closely arranged multi. cylinders to meet the irregular contour of shoe sides, ce, 513c can do equalizing side pressing well without dead point. high, top shoe or low, top shoe can be pressed too, with outomaic locating device, very easy to in out shoe, pressure, connection of 2pressing, bars makes pressure even to the outsole without vold

    壓桿相通之設計,使鞋底于壓抵時,受力均勻,不產生空隙且專利之壓桿自動橫移定位設計,使鞋子之取放方便無阻,能提高產能,且不使鞋面受損,故除一般鞋類外,無論長統或半長統鞋,亦能方便地操作,且效果亦能塌實。
  7. In chapter 4, the principle drawing of the system is presented after adding a constant - pressure - drop valve. the operating principal of the valve is briefly introduced. the static mathematical model is built up and study is carried out by means of simulation under the circumstance of matlab, then the static working point is obtained

    對定差減壓閥作了簡要的介紹,根據系統工作原理圖建立靜態數學模型進行模擬研究,由模擬結果分析系統靜態工作特性,得到靜態工作點;然後,建立系統動態模型,對其動態特性進行非線性模擬研究,並就環境因素變化對系統工作特性的影響作了詳細分析。
  8. At first, in the process of experiments, it were measured that dry plate pressures drop and point pressures in the flow fields around the single fixed - valve and double fixed - valves under different velocities by using of pitot tube. after that point pressure was transformed to point velocity, two dimensions flow plane of flow fields around fixed - valve were plotted to observe the difference between of the fixed - valve tray with fold edges and the common rectangular fixed - valve tray on the distributions of flow fields and pressures, to provide comparisons and refer - rence for cfd simulation

    在實驗中,利用測速管等儀器對在不同速度下的單閥和雙閥固定閥周圍的流場進行了點壓力測量,然後把點壓力轉化為點速度后繪出固定閥周圍流場的二維流線圖,同時測定了塔板的干板壓降,來考察新型固定閥帶折邊后對流場分佈和壓降的影響,為隨后的數值模擬提供對比和依據。
  9. A ' method of analyzing the stresses of the lining of fiber enlaced composite cylindrical shell under internal pressure is raised through building the theory equation with putting the ring shaped stiffener on the point of enlancing fiber. the result is good fit with the traditional finite element analyzing system

    並結合對承受內壓的纖維纏繞復合材料圓柱殼進行了分析,通過建立理論方程提出了把加強環點建立在纖維纏繞處分析圓柱殼內襯應力應變的方法,計算結果與傳統有限元分析系統計算結果相吻合。
  10. This article proposes a behavior model of workforce movement based on the disparity analysis in many aspects that exists in urban and rural areas, which shows the economic behaviour reason and its decisive condition of the rural workforce movement, and point out that the fabulosity of change rural backward situation by the rural - urban workforce movement as well as the basic way to narrow disparity in urban and rural areas and solve the urban pressure on employment is to quicken the development of rural economy

    在分析城鄉存在的多方面差距的基礎上,提出一個勞動力遷移的行為模型,用以說明農村勞動力遷移的經濟行為動因及其決定條件,指出完全依靠農村城市勞動力遷移來改變農村落後局面的不現實性,最後提出加快農村發展是解決城市就業壓力,縮小城鄉差距的根本之道。
  11. Molal solution are normally used when the physical properties of solutions, such as vapor pressure, freezing point and boiling point, are involved.

    在涉及溶液的物理性質如蒸汽壓,冰點和沸點時,通常使用重量克分子濃度。
  12. The four properties, vapour pressure lowering, freezing point depression, boiling elevation, and osmotic pressure, are known as the colligative properties of solutions.

    溶液的這四個特性:蒸汽壓下降、凝固點降低,沸點升高和滲透壓,稱為溶液的依數性。
  13. At this point the gauge pressure was read.

    立即記錄油壓表讀數。
  14. It is practically immiscible with water, has a high boiling point and low vapour pressure

    它特別不溶於水,沸點更高,蒸汽壓更低。
  15. Specific means is preexistence reaction spot is located inside chosen acupuncture point area, the handle that use a needle ( or match rod ) press pressure, its have the place of tenderness to be reaction dot namely, radish is stuck with adhesive plaster after disinfection child ( turnip seed ), after affixing fat acid bilges feeling can, choose 3 every time 5 point, pressure after sticking fat or the parent, daily proper motion is pressed press 3 4 times, change every week, or so ear undertakes alternately, such holding to that treat 1 3 months, what can control children is fat

    具體方法是先在選用的穴區內找出反應點,用針柄(或火柴棍)按壓,其有壓痛的部位即為反應點,消毒後用膠布粘萊菔子(蘿卜籽)一粒,貼上之後胖兒有酸脹感即可,每次選3 5個穴位,壓貼后胖兒或家長,每日自行按壓3 4次,每周換一次,左右耳交替進行,這樣堅持治療1 3個月,能夠控制兒童的肥胖。
  16. Application of electric connection point pressure meter in water supply constant pressure system

    電接點壓力表在給水定壓系統中的應用
  17. Steam is formed if the boiling point pressure for the temperature of the reservoir is reached.

    如果達到對應于熱儲溫度的沸點壓力,就會形成蒸氣。
  18. The retrograde condensation impact tends to be unavoidable because the phenomenon that bottomhole producing pressure is lower than dew point pressure is easy to be found in productivity well test

    而在產能試井中很容易出現井底流壓低於露點壓力的情況,因此反凝析現象不可避免。
  19. Abstract : if fluid flowing pressure is smaller than bubble point pressure, downhole fluids flow in a flowing regime of oil / gas / water phase

    文摘:提出了一種應用灰色理論和優化技術處理三相流產出剖面資料的方法。
  20. Abstract : after the concept of the acoustic transfer has been explained, a method on the basis of the test results to solve the acoustic transfer is presented, that is to slove the system of linear equations about the acoustic transfers based on measurement of frequency response between exciting force and velocity, exciting force and the point pressure in cavities

    文摘:闡述了低頻腔體聲場的聲傳遞函數的概念,提出了一種實驗求解聲傳遞函數的方法,即在腔體壁面各測點的力與速度、腔內關鍵位置力與聲壓之間頻響函數測量的基礎上,求解聲傳遞函數的線性方程組。
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