正壓差 的英文怎麼說

中文拼音 [zhēngyāchā]
正壓差 英文
positive differential pressure
  • 正 : 正名詞（正月） the first month of the lunar year; the first moon
  • 壓 : 壓構詞成分。
  • 差 : 差Ⅰ名詞1 （不相同; 不相合） difference; dissimilarity 2 （差錯） mistake 3 [數學] （差數） differ...
  • 正壓 : barotropic
  1. The main operating transformer connected by a adscititious tandem on - load - tap - changing one is the important mode. about this question readers can get a correct and detailed answer from this paper

    通過基本定義和有關名牌值進行了計算和分析，認為在正負極限檔，外加串聯調壓變的阻抗值相對額定檔的偏差很小，所以可不必在意這種變壓器整體阻抗的偏差值。
  2. A silicone oil bubbler provides a positive gas pressure head inside the growth tube at all times.

    硅酮油起泡器能始終在生長管內產生一正氣壓位差。
  3. This drilling adopts crank connecting link and walking beam percussion mechanism, which make the drilling possess two percussive functions, normal drilling takes connecting link impact as main mode, when encountering special situation and the connecting link impact can not drill, it can transform into hoisting impact, the stroke length can be modulated, it realizes automatic percussive drilling due to continuous operating of connecting link percussive mechanism, these can enhance drilling efficiency and relieve labor intensity ; it adopts pumping reverse circulation to drain slag, which not only resolves the drilling difficulty in special stratum such as pebble and gravel stratum and hard stratum, but also resolves the problem that the percussive drill ' s efficiency is low ; it adopts spur gear differential mechanism as double cylinders lazy tongs of main hoist, which not only ensures the balance state of drilling tool, but also reduces the mechanical design, and reduces the cost ; the bottom plate traveling motion of this drilling machine adopts walking type ; the drilling tower adopts hydraulic pressure uprising, and reduces the assistant operating time

    該鉆機採用曲柄連桿、游梁式沖擊機構，使鉆機具有兩種沖擊功能;正常鉆進以連桿沖擊為主，遇到特殊情況，用連桿沖擊不能鉆進時，可轉為卷揚沖擊，沖程可調，因連桿沖擊機構連續工作，所以實現了自動沖擊鉆進，可提高鉆進效率，減輕勞動強度;採用泵吸反循環的方式排渣，既能有效解決卵礫石地層、堅硬地層等特殊地層鉆進的困難，又很好地解決了沖擊鉆機效率低下的問題;採用直齒圓柱齒輪差速機構作為主卷揚的雙筒同步機構，既保證了鉆具處于平衡狀態，又大大簡化了該機構設計，降低了成本;該鉆機底盤行走移位採用步履式;鉆塔採用液壓起立，減少了輔助作業時間。
  4. Through studying it is shown that in chagan sag, the geothermal gradients in the center are higher than those around the sag margin and major factors influencing the characteristics of temperature field distribution are the property of geotectogenesis and the differences in tectonic portion, lithology and underground water behaviour ; there are three types of mudstone compaction, i. e. normal compaction, undercompacition and overcomepaction ; there are two pressure systems in sandstone reservoirs, i. e. normal pressure and negative pressure systems and the strata ' s being uplifted and denuded is the key factor leading to the formation of the negative pressure system in reservoir ; and the distinctive temperature - pressure field characteristics in the sag are possessed of important petroleum geological significance in hydrocarbon source maturity, hydrocarbon generation, widening on oil and gas exploration domain and selecting exploration targets, etc

    研究表明，查干凹陷中心的地溫梯度高於凹陷邊緣，大地構造性質及所處構造部位、巖性與地下水活動的差異是影響凹陷地溫場分佈特徵的主要因素；泥巖壓實存在正常壓實、欠壓實和過壓實三種類型，砂巖儲層段壓力類型可分為正常和負壓兩個系統，地層抬升剝蝕是導致儲層負壓系統形成的主導因素；凹陷獨特的溫壓場特徵對烴源巖成熟、油氣生成、油氣勘探領域的擴大及勘探方向的選擇等具有重要的油氣地質意義。
  5. The feedbacks of position, velocity, acceleration and dynamic pressure were applied to adjust the model, so the control system of single jar electrodraulic servo mechanism was built. to reduce the system error and interference error, the compound control was designed. the results of simulations showed that the magnitude attenuation and phase lag of the system come to the project demand

    引入包括位置反饋、速度反饋、加速度反饋和動壓反饋在內的反饋控制技術對電液伺服驅動機構模型進行綜合校正，從而建立單缸電液伺服控制系統，並在分析系統誤差和擾動誤差后，加入復合控制減小系統誤差和抑制干擾，模擬結果表明復合控制系統的控製品質有了明顯改善，能夠滿足工程需求。
  6. On the part of the design of nine - component thrust vector stand, an automatic hydraulic pressure original position calibration system, a scheme of original position calibration, and the great rigidity universal flexible combinatorial underprop are designed. by using the scheme of “ universal flexible combinatorial underprop plus software digital filter ”, the inherent frequency of test stand is improved, and the problem of test stand libration is solved. then, the resolving method of the disturbance between underprops of the moveable frame is proposed, and the disturbance revise equation is deduced

    在推力矢量試車臺設計方面，設計了自動液壓原位校準系統、原位校準方案以及大剛度萬向柔性組合支撐;採用「萬向柔性組合支撐+軟體數字濾波」的方案，提高了試車臺動架的固有頻率，解決了試車臺動架的振動問題;提出了動架約束互擾問題的解決方法，推導了互擾修正方程;研究了九分力推力矢量測量誤差分析方法，並計算了推力矢量測量精度。
  7. A common mistake and its harm in ct secondary connection of transformer differential protection were analyzed, the correct connection mode was explaned, and how to use the hexagon vector diagram of checking was introduced

    摘要分析了一種常見的變壓器縱差保護電流互感器錯誤接線及其危害，說明了正確接線方式，並介紹了如何通過作六角圖來檢查縱差保護二次接線的正誤。
  8. Finally, we can not use electric power but the engine of bus or subsidiary engine to drive air compressors of bus air conditions. because the change range of turnaround speed of engine is very wide, that brings difficulties in controlling the rate of flow of cold - producing medium. in the control of bus air - conditions, preventing evaporator from freezing to make the air - conditions work with high efficiency and controlling the temperature of railway carriage are the basic tasks in air - condition control

    與一般的建築空調相比，汽車空調的工作環境惡劣，條件差，控制難度要增加很多，主要體現在以下幾個方面：一是車外熱負荷變化大，難以確定控制參數；二是要求空調負荷大，而且要控制空調使其降溫迅速：三，不便於用電力作為動力源，必須用汽車發動機或輔助發動機來帶動壓縮機，當採用汽車發動機作為動力源時，由於汽車的車速變化大，發動機轉速的變化可從600r min到4000r min ，壓縮機轉速與發動機轉速成正比，其轉速變化高達7倍，給空調系統製冷劑流量控制帶來困難。
  9. This thesis conducts a detailed analysis of yangda dairying group ( ydg ) from the perspective of marketing situation, competitiveness and designs four sorts of management strategies through " swot ". there are : ( 1 ) to emphasize freshness of our products ; ( 2 ) to regulate or innovate inner organizational structure of the enterprise under the pressure of external competition ; ( 3 ) to introduce green marketing concept by taking advantage of advanced technologies at yangzhou university ; ( 4 ) to avoid competition with rivals on room - temperature dairy products

    本文從營銷環境、競爭力的角度對揚大乳業集團作了細致分析，並通過swot分析設計出了四大類經營戰略方案，即採取差別化戰略突出乳品在本地市場的新鮮優勢；利用外部競爭壓力加快推動對內部組織結構的調整和改造；充分發揮高校科技與人才優勢，引進綠色營銷理念，塑造綠色乳品形象，引導綠色乳品消費，避免在簡單的買贈促銷上與競爭對手對抗；採取「有所為有所不為」的策略，避免在常溫產品上與競爭對手進行正面競爭。
  10. The system is different from traditional silicon controlled dephasing method, such speedy modules as whole controlled electric and electronic equipment igbt and high frequency pwm controlling methods are employed, and the voltage of exchanging power supply of motor of beam pumping units can be controlled automatically, so there is no problem of power factor being decreased brought by silicon controlled phase single controlled, power factor in power net of beam pumping units " motor is enhanced really

    由於雙管齊下，電機電網側的功率因數得到了大大提高。與傳統的可控硅移相控制方式不同，本系統採用全控型電力電子器件igbt等快速模塊及高頻pwm控制方式，對抽油機電機的交流供電電壓進行自動控制，不存在可控硅相控角所帶來的功率因數變差的問題，真正提高了抽油機電網側的功率因數。
  11. I was so amaz d with the thing it self, having never felt the like, or discours d with any one that had, that i was like one dead or stupify d ; and the motion of the earth made my stomach sick like one that was toss d at sea ; but the noise of the falling of the rock awak d me as it were, and rousing me from the stupify d condition i was in, fill d me with horror, and i thought of nothing then but the hill falling upon my tent and all my houshold goods, and burying all at once ; and this sunk my very soul within me a second time

    完成圍墻后的第二天，我幾乎一下子前功盡棄，而且差點送命。事情是這樣的：正當我在帳篷後面的山洞口忙著幹活時，突然發生了一件可怕的事情，把我嚇得魂不附體。山洞頂上突然倒塌下大量的泥土和石塊，從巖壁上也有泥土和石頭滾下來，把我豎在洞里的兩根柱子一下子都壓斷了，發出了可怕的爆裂聲，我驚慌失措，全不知道究竟發生了什麼事，以為只不過像上回那樣發生了塌方，洞頂有一部分塌了下來。
  12. In the upper troposphere, there is no intact asian active center. the troposphere structure of summertime ao is implicated with the horizontal heterogeneity of air temperature throughout the whole troposphere with its center over asian continent, which results in the zonal asymmetry and baroclinic structure of the summertime ao ( especially its asian center ). on the contrary, the correlation between wintertime ao and sea - land thermal contrast confines in the lower troposphere, hence its zonal asymmetry and baroclinity in the lower level

    夏季北極濤動的這種結構與對流層整層的溫度水平分佈不均勻性有密切聯系，且這種溫度分佈差異主要體現在亞洲大陸，因而也就使北極濤動的中緯度亞洲中心呈現出比同緯度帶其它區域更為明顯的緯向非對稱性和斜壓性；而冬季北極濤動受下墊面海陸分佈差異影響，其緯向非對稱型和斜壓性質主要出現在對流層中低層，在對流層高層表現出很強的環形模態和正壓結構。
  13. Semiconductor integrated circuits. detail specification for types jw4805, jw4810 and jw4812 three terminal low drop fixed output positive voltage regulators

    半導體集成電路. jw4805 jw4810 jw4812型三端低壓差固定正輸出電壓調整器詳細規范
  14. Icu admission, noninvasive positive pressure ventilation use, the need for invasive mechanical ventilation, and the length of hospital stay did not differ in the positive and negative sputum culture result groups, the investigators say

    研究者說，痰培養陽性組和痰培養陰性組在入住icu 、應用無創性正壓通氣、需行有創性機械通氣和住院時間方面沒有明顯差異。
  15. However, during positive pressure ventilation and balanced anaesthesia, there was no evidence of different effects caused by the two anaesthetics

    然而，處于正壓通氣及平衡麻醉時，這兩種麻醉藥效果沒有差異。
  16. This paper analyses the type, function and characteristics of usual proportional control valves and raises a new modificative version in the light of their drawback. that is, basing on the principle of flow amplification and electrical feedback and throughout calculation and analysis on flow closed loop control and pressure flow combination., determination of the minimum controlled pressure difference as well as flow controlling range and structure of main valve and research of the dynamic and static characteristic, the paper puts forward control principle of " flow - load pressure change - displacement revision " and pressure / flow double closed loop, and further expounds that using a proportional controller and a electric mechanical transducer can separately serve the control function of pressure or flow as well as flow pressure combination

    本論文分析了目前常用比例閥的類型、功能、特性，並針對其不足提出新的改進方案，即：以流量放大，電反饋兩個原理為基礎，通過對流量閉環控制及壓力流量復合的計算分析、確定上最小控制壓差及流量控制范圍，確定主閥結構、功能特性研究等，提出了「流量? ?負載壓力變化? ?位移修正」的控制原理和壓力流量雙閉環控制原理，並進一步論述了利用一個比例控制器和一個「電?機械轉換器」就可完成獨立的壓力或流量控制功能以及流量壓力復合控制功能。
  17. Is it dam in particle, filter screen of inboard becoming certain to act as, cause imports and exports end pigeonhole difference is it get keep difference at the difference of pigeonholing controller set for to increase, start back flush, after back flush, press difference and return to normal, the filter resumes to filtering the working state normally again

    當被截流在濾網內側的顆粒達到一定程度，致使進出口端的壓差增大到壓差控制器所設定的壓差值時，開始進行反沖洗，通過反沖洗后，壓差恢復正常，過濾器又恢復到正常過濾工作狀態。
  18. Standard test method for determining air flow through the face and sides of exterior windows, curtain walls, and doors under specified pressure differences across the specimen

    在通過樣品的規定壓差下測定通過外窗幕墻和門的正面和側面的氣流的測定的標準試驗方法
  19. The guage will accept the accidental application of up to 4 times full scale without damage except for small calibration error

    除了有略微的校正誤差以外，這個壓力表能夠承受4倍量程的意外應用而不會被損壞。
  20. To research the issues measurement models and analysis methods of power quality, we put forward an analytical opinion in this paper. following fluctuation of power system, which amends parameters deviation in accordance with fundamental component

    本文通過對電能質量的指標、測量模型以及各種電能質量分析方法的深入研究，提出了一種實時跟蹤電壓基波分量參數的變化，獲取幅值、頻率、相角的實時數據，修正偏差的分析思路。
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