正壓下 的英文怎麼說

中文拼音 [zhēngyāxià]
正壓下 英文
direct draft
  • 正 : 正名詞（正月） the first month of the lunar year; the first moon
  • 壓 : 壓構詞成分。
  • 下 : 下動詞1. （用在動詞后,表示由高處到低處） 2. （用在動詞后, 表示有空間, 能容納） 3. （用在動詞后, 表示動作的完成或結果）
  1. Echocardiographic examinations were performed at baseline and in anaesthetized patients under spontaneous breathing and under positive pressure ventilation

    分別在基礎情況下、麻醉中自主呼吸時和麻醉下正壓通氣時進行超聲心動圖檢查。
  2. The barometer is falling.

    氣壓正在下降。
  3. Other common devicesintravenous medication pumps allow the nursing staff to titrate medications ; foley catheters and urine collection bags aid in monitoring urine output ; sequential compression devices squeeze the lower extremities and reduce the incidence of deep venous thrombosis ; transvenous pacemakers stimulate the patient ' s heart to beat ; dialysis machines remove fluid and correct electrolyte and acid - base disturbances ; intraaortic balloon pumps assist the heart ' s contractility ; and neurologic monitoring systems measure intracranial pressure

    其他常用裝置靜脈內給藥泵由普通護士用於滴定藥物；弗利氏導管和集尿袋幫助監測排尿量；連續壓迫裝置擠壓下肢，減少深部靜脈血栓形成；經靜脈起搏器刺激病人心臟跳動；透析儀除去液體，糾正電解質和酸堿紊亂；主動脈內氣囊泵支持心臟收縮；神經病學監測系統測定顱內壓。
  4. Method of tests for fire door assemblies under positive pressure

    正壓力下防火門組件測試方法
  5. Inertial instability barotropic advection of potential vorticity the subsidence of the large value of potential vorticity above cyclone and geostrophic adjustment process is dynamical factors which make the cyclone developed violently

    慣性不穩定，正壓位渦平流以及正壓位渦大值下沉至氣旋上空和地轉適應過程是氣旋強烈發展的動力因子。
  6. The growing grass was crushed down by hailstones

    正在生長的草被冰雹壓下去了。
  7. In this thesis hydraulic experimental studies and theoretical analyses on the vortex - flow drop shaft were conduced and the following results were accomplished : ( 1 ) in the model test some hydraulic characteristics including the shape of air core in the center of the drop shaft, the radial distribution of water flow velocity and the distribution of pressure on the wall of the drop shaft were measured under the condition of high water head above 250m and large discharge above 1400m3 / s. ( 2 ) a kind of computational method for the spiral water flow in the air core region of drop shaft was discussed and applied and the results agree the experimental data well. ( 3 ) the total ratio of energy dissipation in the drop shaft can reach 90 % and the energy dissipation in every region was discussed quantitatively

    本文通過試驗研究與理論分析對旋流式豎井泄洪洞應用於高水頭、大泄流量情況時存在的一些水力學問題進行了研究和探討，取得以下主要成果：一、結合小灣工程導流洞改建，對高水頭（ 252m ） 、大泄流量（ 1400m ~ 3 s ）條件下旋流式豎井中的水流運動特徵進行了比較全面的測量，包括空腔形態、徑向流速分佈及井壁壓強等；二、提出了豎井空腔段螺旋水流水力計算方法，其計算結果與實測值吻合良好；三、利用試驗與計算結果，對旋流式豎井的消能機理進行了探討，對豎井各部分的消能能力有了總體認識；四、對豎井下部消力井的合理井深進行了優化試驗研究，發現消力井合理深度為0 . 9d左右；五、通過試驗研究，歸納出豎井水流總摻氣量估算方法，為導流洞排氣方案的設計提供了參考依據；六、在高水頭、大流量條件下，豎井空腔段下部流速很高，盡管水流螺旋運動引起的離心力可以確保井壁壓強保持正壓，但空化數依然較低，因此豎井的空化空蝕始終是工程界關注的重大問題。
  8. Volt ratio boxes rated up to 1000 v are usually calibrated at rated voltage against the laboratory s standard

    1000v或以下的直流分壓箱一般將按其額定電壓下與本所的標準電壓進行校正。
  9. Intravenous medication pumps allow the nursing staff to titrate medications ; foley catheters and urine collection bags aid in monitoring urine output ; sequential compression devices squeeze the lower extremities and reduce the incidence of deep venous thrombosis ; transvenous pacemakers stimulate the patient ' s heart to beat ; dialysis machines remove fluid and correct electrolyte and acid - base disturbances ; intraaortic balloon pumps assist the heart ' s contractility ; and neurologic monitoring systems measure intracranial pressure

    靜脈內給藥泵由普通護士用於滴定藥物；弗利氏導管和集尿袋幫助監測排尿量；連續壓迫裝置擠壓下肢，減少深部靜脈血栓形成；經靜脈起搏器刺激病人心臟跳動；透析儀除去液體，糾正電解質和酸堿紊亂；主動脈內氣囊泵支持心臟收縮；神經病學監測系統測定顱內壓。
  10. To directly estimate the life of this kind of motor, and to design a orbit curve with the longest life at same condition, this paper gives theoretic research of the equal contact stress inner curve of radial piston motor. the research is divided into four parts : 1 ) taken all forces the piston endured into consideration when radial piston motor working, the force between roller ( or ball ) and orbit is deduced. the simple style of the press expression can be confirmed by ignoring minor influence factors after analysis all factors that will influence this press

    靜壓傳動技術在各類工程機械中得到廣泛的應用，對作為其核心部件的徑向柱塞式低速大扭矩液壓馬達的研究顯得十分重要，為了能直接對這種馬達進行壽命估計，並能在相同工況下求得壽命最長的軌道曲線，本文從設計等接觸應力內曲線的角度對這類馬達作探討性的研究，主要從以下四個方面進行： （ 1 ）綜合考慮徑向柱塞式液壓馬達工作時的各種主要受力狀況，對柱塞組件進行受力分析，並通過模擬分析影響軌道和滾動體間正壓力的各個因素，得到正壓力的簡化表達式。
  11. Based on ladle refining, wide flat anvil forge with great forging ratio, heat treatment process of " normalizing + spheroidizing + diffusion hydrogen ", the cold roll blank has been forged succesfully, and the percent of pass is up to 90. 5 %

    採用鋼包精煉爐冶煉、寬平砧大壓下量鍛造、 「正火+球化+擴氫」的熱處理工藝，成功製造了冷輥坯，合格率達90 . 5 。
  12. Abstract : based on ladle refining, wide flat anvil forge with great forging ratio, heat treatment process of & quot; normalizing + spheroidizing + diffusion hydrogen & quot;, the cold roll blank has been forged succesfully, and the percent of pass is up to 90. 5 %

    文摘:採用鋼包精煉爐冶煉、寬平砧大壓下量鍛造、 「正火+球化+擴氫」的熱處理工藝，成功製造了冷輥坯，合格率達90 . 5 。
  13. The plane sent to all war - end version of the compressed version of the amendment to address the previous version of the cpu is too high. and modify some magic, only 3. 74m, too is worth fighting for the crowds to watch the download

    這次給大家送上機戰補完版的修正壓縮版，解決了上版cpu要求過高的問題，並修改了部分特效，才3 . 74m ，太值得廣大機戰迷下載觀看了！
  14. To study the changes of poisson ' s ratio and its anisotropy with confining pressure, we measured p - and s - wave velocities in three orthogonal directions in 19 rock samples under different confining pressures

    為了研究不同巖石中泊松比及其各向異性隨圍壓的變化，選取19塊典型的巖石樣品，在不同圍壓下沿相互正交的3個方向同時測量縱、橫波速度，並通過計算得到了泊松比及其各向異性。
  15. Standard practice for sampling gas from a transformer under positive pressure

    在正壓力下從變壓器中抽取氣體樣品的標準實施規程
  16. The random mathematical model is described using equivalent markov equations. the time and state parameters are discrete. based on the model, the flow rate distributions along radial and average at any height can be calculated directly, moreover, the probability transition matrix of the flow can be determined via the statistic character of the random cumulate particles, and be corrected by s. cd the random theoretical model shown in fig. l, the section of the bed of tbr is divided into a series of concentric circles

    一、在常溫和常壓下進行滴流床反應器流率分佈的研究，以狀態離散、時間離散的齊次markov過程描述了滴流床在滴流區的流率分佈，建立了滴流床在滴流區流率分佈的隨機模型，根據此模型可以： 1 、可直接確定任一高度下的液體徑向流率分佈及平衡流率分佈； 2 、液體流動的概率轉移矩陣可由隨機堆積顆粒的統計特性確定，以參數s修正。
  17. Melatonin has a simple chemical structure, but it plays a decisive role in bodily functions, monitoring the work of the glands and organs, and regulating hormone production. it also controls over - stimulation of the sympathetic nerves to lower blood pressure and slow the heart rate, thus reducing the impact on the heart. it also alleviates mental stress, improves sleep, adjusts the body s biological clock, relieves jet lag, strengthens immunity, increases the body s resistance to germs and viruses, and prevents cancer and senile dementia

    褪黑激素的化學結構非常簡單，但是在人體內卻具有舉足輕重的作用：它監視著體內各種腺體器官的運作，指揮各種荷爾蒙維持在正常的濃度它可以抑制人體交感神經的興奮性，使得血壓下降心跳速率減慢降低心臟負擔它能夠減輕精神壓力提高睡眠品質調節生物時鐘緩解時差效應，而且具有加強免疫功能抵抗細菌病毒及預防癌癥老年癡呆癥等多種疾病的功效。
  18. As mentioned, caffeine may protect against heart disease death in the elderly by preenting a decline in blood pressure after meals, a phenomenon that becomes increasing more pronounced with age

    正如上面提及的，咖啡因能夠通過預防餐后血壓下降來降低老年人群的心臟病死亡率。餐后血壓下降現象隨年齡增加越來越顯著。
  19. Respiratory protective devices - compressed air line breathing apparatus with demand valve - part 2 : apparatus with a half mask at positive pressure - requirements, testing, marking

    呼吸防護裝置.帶用量閥的壓縮空氣管路呼吸裝置.第2部分:在正壓下半罩式面具裝置.要求檢驗和標記
  20. Respiratory protective devices - compressed air line breathing apparatus with demand valve - apparatus with a half mask at positive pressure - requirements, testing, marking

    呼吸防護裝置.帶用量閥的壓縮空氣管路呼吸裝置.在正壓下半罩式裝置.要求檢驗和標記
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