long duration 中文意思是什麼

long duration 解釋
長持續時間
  • long : n 朗〈姓氏〉。vi 渴想，極想，渴望 （for 〈古語〉 after to do）。adj （longer longest ）1 長，長的...
  • duration : n. 1. 持久，持續。2. 持續時間，存在時間；期間。adj. -al
  1. This type of long persistent phosphor has the advantages of innocuity, no radioactivity, high luminescence, long duration and no need of electricity, so it can be regarded as high efficiency solid display material

    它無毒、無放射性、亮度高、余輝時間長、不消耗電能，是一種高效節能的固體發光顯示材料。
  2. This paper use the ncep / ncar day - to - day reanalysis data of 500hpa high field and so on, choose ural mountain, baikal, okhotsk as the key district, the mid - high latitude of eurasia circulation courses that have long duration ( scale of time is middle, namely during 10 - 30 day ), maybe continue continuously after being intermittence of 1 - 2 days in middle, appear repeatedly is for research object, define an index " i " of the circulation pattern over mid - high latitude of eurasia. a method is proposed to identify the summer typical persistent circulation pattern at 500hpa levels over eurasia mid - high latitude. the climate characteristics of those typical persistent circulation patterns are studied

    本文利用ncep / ncar再分析逐日500hpa高度場等資料，選擇烏拉爾山、貝加爾湖、鄂霍次克海這三個地方作為關鍵區，以夏季歐亞中高緯度持續時間長（時間尺度屬于中間時間尺度，即10 ? 30天之間） 、中間可能會間歇1 、 2天然後又繼續持續、反復出現的環流過程為研究對象，定義了一個夏季歐亞中高緯流型指數，在此基礎上提出了一種對夏季歐亞中高緯500hpa典型持續流型的界定方法，研究了典型持續流型的氣候特徵，分析了流型指數的年代際變化，以及對應不同階段、不同流型的降水場、加熱場、海溫場等的主要特徵。
  3. Failure analysis on the main lg31. 5a screw refrigeration compressor and existing problems in the equipment operation are analyzed, pertinency comprehensive technical innovation is made on the equipment to make it possible for the compressor to run safely and stably in the long duration, and to reduce the maintenance cost

    摘要分析了lg31 . 5型螺桿式製冷壓縮機主機失效原因及機組運行中存在的問題，對機組進行了針對性的綜合技改，實現了壓縮機的安全穩定長周期運行，降低了檢修費用。
  4. The company, because of its long duration of engagement in relation to the process supervision service and commissioning for power plant i c systems, has possessed a group of technology talents who have strong major knowledge and abundant site experience

    魯控公司是以原山東電科院熱工室為基礎發展起來的，一直從事電站熱控系統的生產監督服務及調試工作，所以擁有大量專業知識扎實現場經驗豐富的技術人才。
  5. The underwater glider, a new kind of underwater vehicle, has the advantages of low - noise, long range, long duration and cost - efficiency

    摘要水下滑翔機器人是一種新型水下機器人，具有噪聲低、航行距離遠、續航時間長、成本低等特點。
  6. Chordoma should be included in the differential diagnosis of a dumbbell - shaped mass involving upper cervical vertebrae in patients with long duration of symptoms

    若病人在上頸椎呈現啞鈴狀腫塊及患有長期癥狀時，脊索瘤應列入鑒別診斷中。
  7. The cyclamen in good quality is graceful in style, bright and beautiful in color, artistic in stem, and it is of the medium height and of long duration of flower

    摘要仙客來的花姿優美，花色艷麗，株型美觀，高低適中，花期長，為國際花卉市場主要盆栽觀賞花卉之一。
  8. The result of long - term operation shows that the computer control system is practical and effective, it can run in the optimal state within a long duration to fully realize data collection and process, remote data transmission and vfvs constant injection control of pumps. it speeds up the automatic procedures of the seawater treatment process, really realizes the unmanned working, decreases the physical intensity to a large extent, improves the management, enhances the management level, avoids equipment wear down as much as possible, makes the seawater treatment efficient and lessens the cost of production

    長期的運行結果表明，該計算機控制系統的實施切實有效，既成功實現了對被檢測參數的數據採集與處理、遠傳以及注水泵機組的變頻調速恆壓注水控制，又提高了系統的自動化程序，真正實現了無人值班作業，在很大程度上降低了工作人員的勞動強度，極大的改善了現場的管理狀況，提高了生產管理水平，且有效避免了設備損耗，提高了水處理效率，降低了生產成本。
  9. There are three important subjects in future uav system development direction. they are very high altitude, long - duration, multifunction and network - based operation

    高高空、長航時、多功能和網路化是未來無人機系統發展的方向。
  10. Multi - redundancy and multi - sensor self - determination ( passive ) fault - tolerance technologies are emphases in long - duration very high altitude uav navigation system research

    網路化多餘度、多傳感器自主（無源）容錯導航技術是長航時無人機導航技術研究的重點。
  11. General methods of testing the performance of industrial process measurement and control instruments. long duration drift

    工業自動化儀表通用試驗方法.長期漂移
  12. Unique net flame design, long duration of net, only 3 ~ 5 to replace the network

    網架特殊設計，篩網使用壽命長，換網只需3 ~ 5分鐘。
  13. Please list and define the power system disturbances which are classified as long duration variation

    3請寫出"電力系統長時間持續不穩定變化"的定義
  14. Based on the hydrodynamic theory, the riverbed deformation process of all reservoir area during long duration is investigated by using of computer numerical simulation. in the meantime, based on one dimensional sediment model, the simulation of the longitudinal scouring and sedimentation and lateral deformation in reservoir tidal flat and mainstream are researched. the quasi - two dimensional sediment numerical model forecasting longitudinal scouring and sedimentation and lateral deformation in reservoir and river are established

    應用水動力學理論，以計算機數值模擬為手段，主要考慮長歷時全庫段的河床變形過程，在一維泥沙數學模型基礎上，同時考慮水庫灘槽縱向沖淤和橫向變形的模擬，著重建立可以預測水庫及河道縱向沖淤及橫向變形的準二維泥沙數學模型。
  15. Because of the large amount of capital, long duration and various risk elements in the aircraft financial leasing ; the risks in it are high

    針對融資租賃項目交易金額大、交易時間長、風險因素復雜多變的特點，本文進行了詳細的風險類型、風險因素分析，探討了飛機融資租賃的風險類型、各類風險的度量方法。
  16. In conclusion, type 2 diabetic patients, with long duration and poor control of blood sugar, have the possibility to associate with bilateral atraumatic tibial osteonecrosis and fracture with poor outcome

    我們的結論為，第2型糖尿病人罹病時間長及血糖控制不良，有可能會導致脛骨產生非創傷性骨頭壞死合併骨折。
  17. Section one analyze and illustrate the oriental culture travel agency, it holds that in today ’ s changing world, brand is a key factor in winning the customs and long duration for tour agencies. china ’ s agencies lack of brands, promotion, and features. this is the biggest problem exists in present agencies

    本文分別對我國旅行社品牌營銷現狀及東方文化旅行社實施品牌營銷的現狀進行說明和分析，圍繞如何建立和維護東方文化旅行社的品牌進行研究。
  18. These are usually inversely related, i. e., high intensity storms are likely to be of short duration and low intensity storms can have a long duration

    通常強度與降雨時間的長短成反比，換句話說，高強度的暴風雨很可能會持續較短的時間，而低強度的暴風雨會持續比較長的時間。
  19. The theory and techniques of modeling method related to petri net have been mature today, so we extend some functions based on it and construct the color extended petri net ( cxpn ) suitable to engineering design and project management. considering price, efficiency of retrieving and storage for data model, and degree of technologies maturity and so on, we choose rdbms to store data model of edwfms. because engineering design process has the properties of long duration, this paper presents a design transaction model of long transaction management so that it supports characteristics of engineering design process

    由於目前商用工作流管理系統中petri網建模方法的應用已經比較成熟，所以本文以petri網的建模方法為基礎，對其進行相應的擴充，構造出適合於工程設計項目管理業務流程的著色擴充petri網（ cxpn網）建模方法；綜合考慮價格、數據模型的存儲與檢索效率以及技術成熟度等因素，選取關系數據庫對工程設計項目管理工作流（ edwfms ）系統的對象數據模型進行存儲；對于工程設計過程中的長事務管理給出了支持協同工作的擴展事務模型，同時對長事務管理中的幾個關鍵技術進行了研究；提出了基於版本樹的資源對象版本管理模型，對復雜的資源版本進行控制；最後，給出了支持分散式工程設計項目管理工作流系統的擴充c s應用體系結構。
  20. However, over asynchronous channels - such as a socket that produces data over a long duration - sax is a wonderfully lightweight programming technique for parsing incoming messages

    然而，在異步通道上如長期產生數據的套接字sax是一種用於解析進入消息的極其輕量級的編程技術。
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