首端 的英文怎麼說

中文拼音 [shǒuduān]
首端 英文
forward end
  • 首 : Ⅰ名詞1 （頭） head 2 （首領） leader; head; chief 3 （表示方位） aspect 4 （姓氏） a surname Ⅱ動...
  • 端 : Ⅰ名詞1 （東西的頭） end; extremity 2 （事情的開頭） beginning 3 （門類; 方面） item; point 4 （原...
  1. First installation in canada ( edmonton, alta. ). invention of small dial and two - wire system eliminating ground at subscriber ' s station

    電話系統首次在加拿大（阿爾塔省埃德蒙頓）安裝。發明小型撥號盤和二線系統，並取消用戶端的地線。
  2. We ll start on the back end, by extending the

    我們將從後端開始，首先擴展
  3. The ultrasonic dynamic contact of bolt - clamped transducer and rigid plane are modeled using hertzian contact theory, and the analyzing results reveal that the nodal plane of the bolt - clamped transducer is levitated in normal direction by the ultrasonic dynamic contact action, and the real area of contact of bolt - clamped transducer and rigid plane decreases in the same time

    首先利用赫茲接觸理論建立了夾心式換能器和剛性平面的超聲動態接觸模型。通過對模型進行分析、求解表明，在縱向超聲頻率動態接觸作用下，換能器節面位置產生了上浮，換能器端面與剛性平面的動態真實接觸面積比靜態時減少了。
  4. First, a terminal double bond was introduced into 3 - amino - 9 - ethylcarbazole ( aec ) via methacryloyl chloride to obtain the compound, 3 - ( n - methacryloyl ) amino - 9 - ethylcarbazole ( mec ). second, mec was copolymerized with butyl methacrylate to prepare the mec - immobilized polymer particles. the resultant polymer particles were used as a fluorescence probe, which was almost free of dye leaching, and had higher photostability in comparison with free aec

    首先利用甲基丙烯酰氯向3 -氨基- 9 -乙基咔唑（ aec ）分子中引入末端雙鍵，得到帶末端雙鍵的熒光指示劑3 - （ n -甲基丙烯酰基）氨基- 9 -乙基咔唑（ mec ） ，然後通過乳液聚合技術將mec共價固定到聚甲基丙烯酸丁酯基體上，制得一種共價固定了mec的聚合物顆粒。
  5. The initial vsd process uses two main characters, the average instantaneous energy and the average instantaneous zero crossing rate ( zcr ). to make the first recognition for the start and the end, the emphasis of which is to select the appropriate value of the threshold and the length of frame. in the final vsd process, the author compares several characters and confirms the new recognition character

    初步分段過程使用了能量和過零率這兩個主要特徵進行端點檢測，重點是合理選擇兩個重要參數? ?門限和統計幀長度的取值；在最終分段過程中，筆者首先通過比較幾種特徵的識別效果，選擇卡爾曼濾波參數作為再次分段的識別特徵，還提出了一種新的識別特徵? ?周期性緩變特徵，使用這兩個特徵分別在子語音段內進行端點檢測。
  6. The chinese kongzhu differs from the diabolo in three primary ways : ( 1 ) the axle of the chinese kongzhu is much longer than that of the diabolo. ( 2 ) the chinese kongzhu has flat side ( s ) like wheel ( s ) whereas the diabolo consists of two bell - shapes. ( 3 ) the chinese kongzhu has air grooves built into their construction

    中國的空竹不同於迪亞波羅，主要有以下三點：首先，空竹的軸要比迪亞波羅的長得多，其次，空竹的兩端或一端是輪狀的圓盒，而迪亞波羅一般為碗狀的兩端。
  7. At first, analysis of extreme temperature ' s spatial distribution of variety trend shows that the minimum temperature in the north are going up while the maximal temperature in east china declining widely, which is a numerical characteristics of prevailing warmer - winter in recent years. so the change of minimum and maximal temperature are dissymmetrical

    首先從總體上，分析極端最高和極端最低溫度變化趨勢的空間分佈：北方地區極端最低溫度普遍上升，且幅度較大，是近年來暖冬盛行的一個數值化特徵；極端最高溫度在東部普遍下降，最低最高溫度變化具有不對稱性。
  8. Keyword, you must first register the object type on the client end using the

    關鍵字激活客戶端激活的對象類型，必須首先使用
  9. First strowger installation in england ( epsom " official switch " )

    英格蘭首次安裝史端喬系統（愛普生「標準交換） 。
  10. Firstly, the connected end sets of the relay lines are got using the breadth first search algorithm and the connected relationship of wiring terms is got in the electrical circuit diagram according to different cad block structure of different element type. secondly, the appropriate specification of the relay element is chosen by using the equinoctial graph algorithm, and the panel layout diagram is generated automatically by the combining automatic layout and manual intervention. finally, the optimized path algorithm which passes each vertex in the completed non - directional graph once and only once is put forward, this algorithm and the prim minimum spanning tree algrotithm can generate the inner panel wiring diagram and terminal wiring diagram automatically

    首先，採用廣度優先搜索演算法查找電氣原理圖中的連通導線端點集，並根據不同類型的繼電元件對應的cad圖塊結構的不同，得到電氣原理圖中元件接線端子之間的連接關系;其次，根據二分圖匹配演算法為電氣原理圖中繼電元件選擇合適的型號和規格，並採用人工干預和自動布置相結合的方法完成屏面布置圖的自動生成;最後，提出了完全無向圖中經過每個頂點一次且僅一次的優化路徑演算法，利用該演算法和經過預處理的prim最小生成樹演算法自動生成屏內安裝接線圖和端子接線圖。
  11. Dismantling the seedling curtain at first, cut the whole seedling curtain into two ( length of 50cm ), each half of seedling curtain is weave by 50 seedling ropes, open seedling curtain slowly, in order to stabilize the seedling curtain in certain layer of water, the top of seedling rope tie up the suspend rope and the underpart of seedling rope falls stones, the interval of each seedling rope is 20cm, confirm the seedling rope does not collide each other in the stormy waves

    首先拆簾，將整個苗簾截成兩半（長50cm ） ，每半片苗簾由50根苗繩織成，將其慢慢拆開，苗繩上端栓在吊繩上，下端系墜石，使其穩定在一定水層，每根小苗繩間隔20cm ，保證苗繩在風浪中不互相碰撞。
  12. Firstly, reciting ability is of extremely importance

    首先，背誦能力極端的重要。
  13. 42 trees are obtained and the 13th is most acceptable. the results show that the evolutionary inclination of forewing and hindwing of empoascini is that the forewing evolved from these whose veins of mp " are derived from cell r, to these whose mp " from cell m, and the most advanced taxa include these whose 3 distal veins are derived from cell m. the hindwing are evolved from these whose cua is branched and the mp " + cua " is presented, to those whose cua is unbranched and mp " + cua " disappeared, based on the above analysis, the genera of empoascini can be divided into two groups : one group includes these whose mp " + cua " are present, the other consists of those whose mp " + cua " are disappeared

    在系統發育方面，應用hennig86 （ version1 . 5 ）軟體，根據中國小綠葉蟬族40個屬及外群dikraneura ，首次研究了該族的系統發育關系，根據研究結果初步提出了該族前、后翅脈的進化方向，即該族前翅翅脈呈現出mp脈源於r室，逐漸進化到mp脈源於m室，最後前翅3條端脈皆源於m室的趨勢；后翅翅脈由cua脈端部分二叉，進化到后翅cua脈端部不分叉、 mp + cua脈退化的趨勢。
  14. In order to make the terminal airspace moderated and consisted, and acquire the biggest capacity of airport, we must consider the influencing factors as many as possible, it is our final target to plan the airspace in beijing terminal unify. with the conditions that the current operation modes of parallel runway, approach and departure procedures and terminal airspace in beijing international airport, this article has analyzed the reasons of airspace congestion. this article also applies the theory of instrument flight procedure and utilizes the current facilities in beijing international airport. the design of flight procedures combining rnav procedures with instrument approach procedures may be accepted on some routes. it make the approach and departure procedure more effective, and increase the capacity of the airport more or less ; secondly, this article contrast the capacities of parallel runway in different methods under radar control, and make the conclusion that the parallel runway in dependent operation modes has the biggest capacity

    本文從目前首都機場平行跑道的運行方式、進離場程序、終端區空域的現狀入手，剖析了造成空域緊張的原因，應用儀表飛行程序設計的思想和原則，利用首都機場終端區現有的設施，某些航線可採用區域導航（ rnav ）程序與儀表進近程序相結合的飛行程序設計，優化了目前首都機場的進離場程序，在一定程度上增加了機場容量；其次，研究了雷達管制條件下平行跑道不同運行方式的容量對比，得出平行跑道獨立運行的容量最大，然後以這種這種運行方式，為首都機場設計出了平行跑道獨立運行的飛行程序；最後，分析北京終端區各機場空域對首都機場飛行程序安全、有效運行的制約因素，研究設計出了北京終端區規劃方案及規劃后的飛行程序和飛行方法，以達到增大機場的容量，適應未來航班量增加的需求。
  15. To test the p7 promoter activity, a series of constructs were obtained by cloning the different dna fragments into the luciferase gene reporter vector pgl3 - b. when the constructs were transiently transfected into thp - 1 cells, luciferase activity assay showed that the core region of p7 promoter located at - - 165 bp

    第一部分的工作首先通過對人acat - 1基因p7啟動子序列進行5 '和3 ' -端的缺失的詳細分析，結果顯示最大報告基因轉錄表達活性位於- 612 - 165bp區段。
  16. At the same time analyse these problems, primarily from basis management aspect analyse various shortage of pyramidical organizational structure and tradition human resources management inside of rw company, and lack information management from inside and outside enterprise, then from operating management aspect analyse the " olivary " strategy that make much of manufacture and make light of development and marketing, it is unadapted to market competition, explain the cause of rw company management innovation

    接著對上述問題進行了分析，首先從企業基礎管理層面闡明了rw公司金字塔形組織結構存在的種種弊端，分析了rw公司傳統人事管理觀念等傳統管理方式的不足，缺乏對企業內部和外部的信息管理；然後從企業經營環節分析了企業當前重製造，輕研發和營銷的「橄欖型」發展戰略與市場競爭不相適應。
  17. Then a vsc controller using on - off valve and two potentiometers are designed for cushioning control system. it can realize the balanced, no shock, no reversing cushioning. experiments under different air pressure, load mass are carried out, and the results prove that the vsc controller can be used in pneumatic cushioning

    第五章首先介紹了變結構控制的原理和應用發展情況，然後針對本實驗系統設計了一個使用開關閥和端位位移傳感器的變結構控制方案，實現緩沖過程的平穩無沖擊和無回彈要求，並在不同氣源壓力、不同負載質量下分析了控制性能的變化，實驗結果證明緩沖控制採用變結構控制是可行的，並具有很強的魯棒性。
  18. In this way, the wattless power of the test signal at the head spot of the fault is only needed to sample when the system fault occurs, which simplifies the measurement

    這樣，當系統發生故障時，只需採集故障首端測試信號的無功功率，大大地簡化了測量的方法。
  19. According to zero sequence voltage distribution from system zero sequence impedance to shunt reactor zero sequence in zero sequence circuit, the zero sequence voltage at the terminal of shunt reactor and the zero sequence compensating voltage at neutral are compared in the scheme

    即根據零序網路中零序電壓在系統零序阻抗和電抗器零序阻抗上的分佈情況，通過直接比較電抗器首端零序電壓與補償到電抗器末端中性點的零序補償電壓的幅值大小，來判別電抗器匝間故障。
  20. If the bus and breaker ' s failure rate is n ' t included in account, the reliability indices will be better, and the result will be more optimistic. at the same time, the connection styles " affection on system reliability is analyzed. thirdly, a novel evaluation method based on dfs is studied

    然後，提出了一種基於dfs的修正最小路演算法用於可靠性評估，採用dfs演算法求取從分支線首端到負荷點的最小路，然後根據系統的配置和實際運行方式，把非最小路上元件對負荷點可靠性指標的影響計入計算，從而計算系統可靠性指標。
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