閥下的 的英文怎麼說
中文拼音 [fáxiàde]
閥下的
英文
subliminal-
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。Inspect machined seat area for nicks and mineral build up clean with emery cloth
檢查機加工閥座區域是否有砂布清洗后留下的刻痕或礦物。Cylinder actuators can be provided with manual overrides for emergency valve actuation, fail safe mode and other accessories
缸體執行機構可以配置針對緊急狀態下的手動過載裝置,閥門驅動,故障安全功能和其它附件。In such cases, provision should be made to always vent above flood level or for a pit drain to insure an adequate air gap below the relief port
如果放置在坑內,則應該採取措施使得排放總是在地面上,或對于坑內排放,要確保在安全閥下方配置一個適當的氣隙。Kai xuan - check cast steel valve in the fully open state, almost unimpeded fluid pressure, the pressure drop through the valve relatively small
旋啟式止回閥在完全打開的狀況下,流體壓力幾乎不受阻礙,因此通過閥門的壓力降相對較小。The gips / gdps series of automatic shut - off valves are safety devices designed to stop the flow of gas when the downstream pressure of the valve reaches a value larger than and / or smaller than the preset operating limit
升壓感應關斷型?與gdps ?降壓感應關斷型?系列自動關斷閥為安全設備,設計當此閥下游壓力達到大於或?和?小於預定操作限度的壓力值時,來中斷瓦斯流動。Valves requiring processing in the clean room should first be assembled prior to cleaning, subjected to cracking and reseat pressure, and flow tested in the flow outside the clean environment
要求在絕對無塵室處理的閥門首先必須在清洗前進行組裝,經過裂化及復位施壓,然後在清潔環境下的流體中作流動測試。3. use characteristic vector quantity of normal situation with leak characteristic vector quantity of situation compare, adopting valve method determinant the leakage of pipelines
本文應用正常情況下的特徵向量與泄漏情況的特徵向量進行比較,並且採用閥值的方法判斷泄漏故障的發生。These above ground storage tanks and buried cutout valves are part of the california pipeline network supplying jet fuel to major airports in san francisco and los angeles as well as gasoline and diesel fuel for other transportation needs
這些儲油罐和埋在地下的終端閥門是加州輸油管網的一部份,這些管網,給舊金山和洛杉磯的主要機場提供飛機燃料,也給其它交通工具提供汽油和柴油燃料。If the hose is left on the figure 85 and 90m in freezing weather, the valve ' s self - draining feature will protect the sillcock from freeze damage if : 1 ) the nozzle is not left affixed to the hose ; and 2 ) the entire hose length is on a plane lower than the fixed position of the frostproof sillcock
如果型號85和90m的軟管位於冰凍氣候中,閥門的自排泄功能將會保護灑水龍頭不會凍壞,如果: 1 )灑水龍頭出口沒有連接軟管;或2 )整個軟管長度都位於防凍灑水龍頭的連接點下方。Manually operated metallic gas values for use in above ground piping systems up to 5 psi
5psi及以下的地上管道系統用手動金屬氣閥The inner lining of such materials as br, nr, cr, fer, rpp, pvd, ptfe and f46 in the valve body of all kinds of cast iron and carbon steel or in the inwall of pipe castings can not only adapt to corrosion medium under different working conditions, but also can replace a great many rare and precious metal, which has, under the normal working conditions of valve, saved a large amount of funds for the users
通過在各類鑄鐵、碳鋼的閥體或管件內壁上進行內襯br / nr / cr / fer / rpp / pvd / ptfe / f46等材料,不但可以適用於不同工況下的腐蝕性介質,而且可以替代許多稀有貴重金屬,為用戶在保證閥門正常使用的條件下節約大量的資金。Thicker knife gate to eliminate distortion under maximum differential pressure and to provide tight seating ( see page 12 )
更厚的刀閘能夠避免在最大壓差環境下產生的扭曲,保證閥座的氣密性密封(參閱第12頁) 。In parallel installations, the larger valve handles the requirements for maximum flow down to its low flow capacity
這種並聯安裝方式中,大閥門處理降到低流量空穴下的最大流量需求。To one pipeline, under the same length of upper reaches of t
因此,對閥下側的含氣水錘的研究應引起人們的重視。The second chapter simply introduces the development of alternate asynchronous inverter technology and retrospects some types of energy - saving systems for hydraulic elevators. then the working principles of the project are discussed and analyzed at four different working status, i. e. light load upwards, heavy load upwards, light load downwards and heavy load downwards. and the chapter focus on the introduction of structure design of pump station, calculation and type selection of pump / motor reversible units, research on oil leakage principles of accumulator circuit, design of accumulator - pump / motor pressure - energy transformer and integrated valve blocks, etc. the last but not the least, the electrical wiring of vector inverter control cabin and design of computer control and data acquisition system are introduced
論文第二章首先簡單介紹了交流異步電動機變頻調速技術的發展概況,在回顧電梯液壓控制系統節能技術的基礎上,介紹了本課題研製的「採用蓄能器的液壓電梯變頻節能控制系統研究」的基本原理,分析了動力系統在電梯轎廂輕載上下行、重載上下行等四種典型工況下的基本工作狀態和工作方式;詳細地介紹了本課題節能系統液壓動力泵站的結構設計和參數設計,重點研究了液壓動力泵站的結構設計、液壓泵馬達可逆性問題及其選型設計計算、蓄能器迴路泄漏油損失機理的研究及其補償裝置的設計、蓄能器-泵馬達壓力能量轉換裝置的設計、多功能集成控制閥組的設計等內容;最後簡單介紹了本課題矢量控制變頻控制櫃的外部附件電氣接線、計算機控制及數據採集系統的硬體設計等內容。The valve caused domestic product because of the low quality : the rapid market expansion, the existing state - owned enterprises have close valves, although the rapid development of township enterprises, but because of the low starting point of township enterprises, technical strength is very weak, poorly equipped, most of imitation products production, especially with the drainage of low pressure valves, the problem is serious
造成國內閥門產品質量低下的原因在於:由於市場急速擴大,原有國營閥門企業紛紛關停並轉,雖然一批鄉鎮企業迅速發展,但由於鄉鎮企業起點低,技術力量非常薄弱,設備簡陋,產品大多數都是模仿生產,特別是給排水用的低壓閥門,問題嚴重。And pid control system was designed and implemented on the base of the control object modeling, which was considered to work well in most cases, after debugging, testing and running in the field, except some key drawbacks including weak robustness and lack of solution for the coagulation on the valve
在系統試運行一段時間后發現, pid控制策略能夠滿足多數情況下的控制要求,尤其是在系統的擾動不太大的時候,但是也存在一些關鍵性的不足,主要是魯棒性不夠和調節閥塞棒掛渣問題沒有好的解決方案。At the same time, the pressure of dynamic state in different opening and closing velocities can be gained, on the basis of results the axial hydraulic force and the fluid force can be calculated, which offers reference and guide foundations for accurately calculating the drive force on water hydraulic valves
同時cfd解析也可以得到不同啟閉速度下閥腔內的動態壓力,在此基礎上計算出作用於水壓閥閥芯的穩態和瞬態軸向液動力,對精確計算閥芯驅動力具有重要的參考價值和指導意義。Thirdly, it researches the maganetic force of the permanent magnetic circuit and electromagnetic circuit in all kinds of working state. especially, it discusses the working state and the working point of the permanent magnet. it argues the rationality and reliability of the valve that we have designed
再者,本文研究了電磁閥中永磁磁路和電磁磁路在各種工作狀態下的磁力情況,尤其對永磁鐵的工作狀態和工作點進行了全新的探討,驗證了所設計電磁閥的合理性和可靠性。分享友人