return pressure 中文意思是什麼
return pressure
解釋
背壓-
Because pressing of arteries and veins increased the impact to blood - vessel greatly, this is, make easy exhaustion mixes the stretch ingredient of tube wall rupture, easy development is aneurism and possible burst, at the same time of hemal wall inside film is injured easily and bring about sclerosis of arterial congee appearance and thrombosis, the hemal sclerosis that and be pressed with wide arteries and veins coexists and diastolic pressure are too low return burden of can aggravating heart and blood of influence coronal arteries and veins to offer
這是因為脈壓大就增加了對血管的沖擊，使管壁的彈性成分輕易疲憊和斷裂，易發展為動脈瘤並有可能破裂，同時血管壁的內膜輕易損傷而導致動脈粥樣硬化及血栓形成，並且與寬脈壓並存的血管硬化及舒張壓過低還會加重心臟負擔和影響冠脈血供。 -
Fluid noise mainly comes from out put pulsation of rate of flow, the main reason of out put pulsation of rate of flow is the instant high pressure return flow that obturation cubage produced when the big round curve pressure transition. the v trough on the port plate can reduce the fluid noise. in this paper, the author based on the acting of dam a river and condensability of liquid and used matlab language as tool to calculate the v trough on the original port plate and drew out the p - t diagrammatic curve and analyzed its shortcoming and improved the design of original v trough and got that the best size of its angle was 12. 3 and its length was 5mm and the cross section was an equilateral triangle
流體噪聲主要來源於輸出流量脈動，造成輸出流量脈動的主要原因是閉死容積在大圓弧段壓力切換時產生的瞬時高壓迴流，在配流盤上開設v型尖槽可降低因高壓迴流而引起的流體噪聲，本文以截流作用和液體的可壓縮性為理論依據，以matlab語言為工具，對原配流盤上的v型尖槽進行了理論計算，繪制出p - t圖線，分析了它的不足，並對原有v型尖槽進行了優化設計，得出了v型尖槽的最佳幾何尺寸：配流盤平面上的v型尖槽的兩邊的夾角為12 . 3 ，槽長5mm ，槽的橫截面為等邊三角形。 -
To mount pressure, gromyko told nixon that brezhnev's return visit to america in 1973 was conditional on progress on the nuclear treaty.
為了施加壓力，葛羅米柯告訴尼克鬆，勃列日涅夫一九七三年對美國的回訪將根據核武器條約的進展情況而定。 -
A new system of rapid roll carriage infeed and return, together with automatic selection of pressure and feed rate, has improved the already impressive floor - to - floor times achieved
快速輥子進給和返回系統和自動壓力、進給速率調節器提高了工作效率。 -
If do not have intense self - confident heart, not only cannot bear one ' s deceased father grind the interference of an inherent mental pressure and each respect, and return can recreant be afraid of getting into trouble, worry about troubles of one ' s own imagining, increase many trouble, interference reviews working on the rails
假如沒有強烈的自信心，不但不能承受考研所固有的精神壓力和各方面的干擾，而且還會膽小怕事，庸人自擾，增添不少煩惱，干擾復習工作的正常進行。 -
Among the pathophysiological mechanisms, the sudden shift from a positie to a negatie intrathoracic pressure plays an important role since it results on the one hand in an increased pressure gradient for systemic enous return and in cardiac preload and on the other hand in a decreased pressure gradient for left - entricular ejection and an increase in left - entricular afterload
在諸多病理生理學機制中，胸內正壓向胸內負壓的突然轉換扮演了重要作用，一方面，是由於增加了體循環靜脈迴流的壓力梯度和心臟前負荷，另一方面，降低了左室射血的壓力梯度並增加了左室后負荷。 -
Once the pressure of the main network returns to normal, the valve flap of drainage outlet closes under pressure, first, second level check valves open, the main network return to supply water to branch pipeline
一旦主管網壓力恢復正常，排污口閥瓣受壓關閉，一二級止回閥打開，主管路恢復向支管供水。 -
Simulated experiments effects of intrathoracic pressure change on hemodynamics three models that simulated the anatomic arrangement of the venous return systems and chest cavity were established to investigate the hydromechanic principle of the different influence of the itpc on the ventricular fillings. effects of intrathoracic pressure change on the motion of interventricular septum ( ivs ) acuson ' s sequoia 512 ultrasonographic system was used in this study to record the m - mode and two - dimensional cineloop images of the simulated interventricular septum movement with different intrathoracic pressure changes
指標觀測觀察並記錄外周靜脈壓和模擬胸腔壓力分別變化及同時變化時，模擬右心室的容積變化；觀察並記錄模擬胸腔壓力變化時，模擬肺血管床和左心室內壓力的變化；用sequoia512超聲心動圖儀觀察胸腔壓力變化對模擬心臟室間隔運動的影響。 -
Instead of closed boundary conditions which will bring large pressure effects because of return flow, a flow through boundary condition is adopted
該模型的主要特點是採用開放邊界條件，從而可以避免原有封閉模型因迴流問題而產生的復雜效應。 -
The effect of return oil pressure on hydraulic system with differential pressure control valve
回油壓力對具有差壓式配壓閥的液壓系統的影響 -
According to a series of experimental data, the effect of following factors on the temperature in the ultra - low temperature box and cop are analyzed : the mixture composition, the pressure ratio and the return fluid extraction ratio of the rectifying column, the refrigeration capacity and the flow rate through throttle valve
並根據一系列實驗結果，分析了工質配比、循環壓比及精餾柱迴流液的抽取率、加熱量和節流元件對低溫箱內溫度和系統cop的影響，為今後的進一步研究指明了方向。 -
When the governing valve was series - connected on the return oil - line in the metering - out control system, under the same flow area and the same adjusted pressure of relief valve, with the incremental quantity of step load, the pressure highly - adjusted capacity of the hydraulic cylinder chamber with piston - rod increased, meanwhile, it ' s time of rise, time to peak and the governing time all increased. at the same time, the pressure highly - adjusted capacity of the hydraulic cylinder chamber without piston - rod increased
當出口節流調速系統的回油路上串接調速閥時，隨階躍負載的增加，在相同流量閥開度、相同溢流閥調節壓力的情況下，液壓缸有桿腔壓力p _ 2 （ t ）的超調量是增加的，上升時間、峰值時間以及調整時間也是增加的；液壓缸無桿腔壓力p _ 1 （ t ）的超調量是增加的。 -
Special support used in haulage way and return airway of 21123 fully mechanized face during larger ground pressure
21123綜采工作面運輸及回風巷的特殊支護 -
Characteristic of pressure of oil return line on hydraulic transmission system
液壓傳動系統的回油背壓特性 -
In this way, when obturation cubage leave absorb oil cavity it connects the eduction oil cavity with the v trough and with the increasing of the turning angle, the size of the cross section of v trough become bigger and bigger, which make the pressure between the cavity of two blades much higher and higher, and until it completely connects the eduction oil cavity, it reaches the pressure of the eduction, and it can effectively reduces the fluid noise caused by high pressure return flow
這樣，當密閉容積離開吸油窗口之後，通過v型尖槽逐漸與排油窗口連通，隨著轉角的增加， v型尖槽通流截面積逐漸增大，這就使兩葉片間容腔內的壓力逐漸升高，直至完全接通排油窗口時，才升壓達到壓油腔的壓力，這樣可以有效地降低因高壓迴流而引起的流體噪聲。 -
" the biggest problem is a blood clot which is blocking the return of blood from the legs to the heart and exerting pressure on the kidneys, " the physician explained
「最大問題是有一塊血液的凝結塊堵塞了從他的腿流回心臟的血液，並且使得他腎的血壓增加， 」外科醫生解釋說。 -
Used the metering - out control system in which the hydraulic cylinder was the executive element as research object in this thesis, the experimental research about the effect on the pressure p1, p2 of the hydraulic cylinder chambers when series - connecting throttle valve or governor valve on the return oil - line under the step load changing have made
本文以單出桿液壓缸為執行元件的出口節流調速系統為研究對象，在其迴路上分別串接節流閥和調速閥，當負載發生階躍變化時，對液壓缸兩腔壓力p _ 1 、 p _ 2的影響進行了試驗研究。 -
Standing clear of the outlet ( discharged water may be hot ), slowly lift and release the lever handle on the temperature and pressure relief valve to allow the valve to operate freely and return to its closed position
經常清洗出口（排泄水可能是熱的） ，慢慢提起並釋放降溫減壓安全閥上的杠桿手柄，使得閥門能夠靈活工作並恢復到關閉位置。 -
The fem results indicated that as to the rough surfaces in sliding contact, the value of the contact pressure was very high which coursed a high value of the heat flow rate, meanwhile the sliding time was not enough for the frictional heat to transfer, thus the highest value of the body temperature occurred just on the sliding surfaces, which possessed a sharp thermal gradient in direction perpendicular to the sliding surface. so the great thermal stress was caused just by the sharp gradient and the thermal elastic distortion with which the contact pressure changed occurred simultaneously, thus this change of the contact pressure would affect the temperature distribution in return
對于相對滑動的粗糙表面，因實際接觸面積小而導致接觸壓力很大，這樣使得熱流密度會很大，同時由於滑動時間很短，熱來不及傳導，最高溫度發生在摩擦表面，在垂直於摩擦面的方向有很大的溫度梯度，使得熱應力很大，且最大應力發生在表面，同時產生熱彈性變形，這種變形使得接觸區域內的壓力分佈發生變化，這種變化又反過來影響了接觸區域的溫度分佈。 -
When the system pressure drops to the return pressure, the security valve will be closed and stop discharging, in the way of which the pipelines and equipments of the steam system will be protected
當系統運行壓力降低至安全閥的回座壓力時，主蒸汽安全閥自行關閉，停止排放，從而對主蒸汽系統的管道和設備起安全保護作用。
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