main stroke 中文意思是什麼

main stroke 解釋
主沖程
  • main : adj 1 主要的，主，全，總。2 充分的，盡量的；全力的，有力的。n 1 體力，氣力；力〈僅用於 with might...
  • stroke : n 1 一擊，一敲；打，打擊；一振，一動；（字的）一筆；一舉；一劃；（游泳的）一爬；一觸；一閃；一刀...
  1. The throw of the crankshaft, i. e. the distance between the main journal and the big end centers, controls the length of the stroke

    曲軸的擺幅，即在主要曲頸和連桿大頭末端中心之間的距離，控制著沖程的行程。
  2. 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。
  3. Structural matching is a main approach for on - line chinese character recognition. in order to reduce its great computational comple xity and improve its performance, people have been seeking for a way to guide the whole matching by the result of partial matching. in this paper, the authors prop osed 45 basic components from 3, 755 categories of the daily - used chinese charac ters to guide the stroke segment matching. because they always locate at either the beginning or the end of the stroke segment string, these components are easy to extract and separate from other parts of the character. besides, the reference templates of these components are dynamically extracted from the reference segmen tstring and dependent on the current matched character so that a more accurate matching is carried out. experiments show that the segment matching computation h as reduced almost 50 %. the approach is also enlightening for other similar object matching problem

    結構匹配是一種有效的聯機手寫漢寫識別方法，為了減少匹配運算，人們一直在尋求利用部分匹配的結果來引導整體匹配的方法.在特徵匹配與結構匹配綜合的基礎上，從3 . 755個一級國標漢字中提取出45個子結構，利用它們來引導結構匹配.由於這些子結構總出現在字首或字尾，因而對它們的檢測比較容易.同時，通過建立子結構活動模板及設計子結構動態抽取演算法，使得子結構匹配的準確度得到很大提高.實驗結構表明，該方法使結構匹配的運算量減少約50 % ，並對類似的物體識別問題有一定的啟發意義
  4. In the light of the problems of the air balance system of model lcj1250 chain drive pumping unit, it is proposed to change the air balance with counterweight balance, and three criteria for the modification is put forward : ( 1 ) ensuring the reliability of the unit with smooth operation, low noise and long life ; ( 2 ) cutting down the production cost and using less component parts as possible ; ( 3 ) carrying out modification without such main technical parameters as stroke, pumping speed and maximum polished rod load

    針對lcj1250氣平衡式鏈條抽油機存在氣平衡故障率高和現場維修困難等問題，提出將氣平衡改造成工作可靠的重力平衡的方案，並確定了改造的三個原則：一是保證整機的可靠性，使抽油機運轉平穩，振動噪音小，壽命長；二是力求降低生產成本，減少零部件製造，盡可能選用原來的通用件，捨去平衡缸和空氣包等氣平衡附件，在原往返架主體上懸掛一個配重箱；三是力求不改變沖程、沖次及最大懸點載荷等主要技術參數。
  5. Abstract : in the light of the problems of the air balance system of model lcj1250 chain drive pumping unit, it is proposed to change the air balance with counterweight balance, and three criteria for the modification is put forward : ( 1 ) ensuring the reliability of the unit with smooth operation, low noise and long life ; ( 2 ) cutting down the production cost and using less component parts as possible ; ( 3 ) carrying out modification without such main technical parameters as stroke, pumping speed and maximum polished rod load

    文摘:針對lcj1250氣平衡式鏈條抽油機存在氣平衡故障率高和現場維修困難等問題，提出將氣平衡改造成工作可靠的重力平衡的方案，並確定了改造的三個原則：一是保證整機的可靠性，使抽油機運轉平穩，振動噪音小，壽命長；二是力求降低生產成本，減少零部件製造，盡可能選用原來的通用件，捨去平衡缸和空氣包等氣平衡附件，在原往返架主體上懸掛一個配重箱；三是力求不改變沖程、沖次及最大懸點載荷等主要技術參數。
  6. Importance and means of signal measurement and processing in control of three main electric and mechanical equipment for walking beam heating furnace are discussed, the discussion includes time filtering processing of digital signal, measuring signal processing and measurement fault judging of translation stroke in charging machine and discharging machine, translation stroke measurement of walking beam and measuring method of slab output quantity

    摘要論述了步進梁加熱爐的三個主要電氣機械設備控制中信號檢測和處理的重要性及方法，包括四個方面：數字信號的時間濾波處理，裝鋼機、出鋼機的平移行程檢測信號處理和測量故障判斷，步進梁的平移行程檢測，板坯流出量的檢測方法。
  7. Main point : beginning from both side of vertebra of “ da zhu ” point down to either side of the small of the back, then receiving stroke back from both side of the body lightly

    要領：雙手操作時，應從脊椎兩側「大抒」處開始膀胱經向下直至兩腰眼處止，然後兩手由體側輕撫收回原處。
  8. As we know, overspeed protection system is one of main protection of steam turbine sets. base on the standing order, we must do oil filler test regularly, but the oil filler test of the emergency stop system, which made by shanghai turbine company ltd., is often fails in stroke

    超速保護系統是汽機主要保護之一，根據規程規定，要定期進行注油試驗以驗證超速保護的可靠性，但上海汽輪機廠所產的危急遮斷器在注油試驗中經常拒動，導致在運行中無法進行注油試驗，無法驗證超速保護系統的可靠性。
  9. In order to input chinese character naturally from keyboard, our next step is presenting a new input method named " stroke simulation ". the main idea of the method is inputting the feature points of a stroke, such as up - point, twist - point and down - point, instead of inputting a stroke directly from keyboard. the trail of the feature points we extracted from a stroke shoud be able to shape the stroke. the most attractive point of this method is that it allows users input strokes continually without an extra key to separate two continuous strokes

    為了在鍵盤上實現漢字的自然輸入，論文提出一種「模擬筆劃」的漢字輸入新方法，這種方法特別適用在目前信息產品上廣泛使用的數字小鍵盤上，它不直接在鍵盤上輸入漢字筆劃，而是根據筆劃的形狀特徵和運筆方向輸入漢字筆劃的起點、折點和落點等筆劃特徵點。
  10. The main achievements are as follows : 1 it ' s for the first time to extensively investigate effects of main combustion system parameters such as plunger diameter, plunger stroke, fuel delivery advanced angle, valve opening pressure of nozzle on performance of dme engine. the parameters are optimized

    取得的主要成果有： 1系統地研究了油泵柱塞直徑和行程、供油提前角、噴嘴啟噴壓力等發動機燃燒系統主要參數對二甲醚發動機性能的影響，優化了這些參數。
  11. Thankfully, modern medicine and improvements in environmental hygiene have brought these types of scourges under control. nowadays, the main killers are cancer, heart disease and stroke

    時至今日，引致死亡的主要殺手是癌癥、心臟病及腦血管病，而癌癥更是多年來雄踞香港第一號殺手的疾病。
  12. Abstract : the forced state in key parts and their lifetime, the volume of high pressure chamber and ratio of pressure, the length of high pressure stroke and pressure stability, the relations between the deformation of high pressure chamber and temperature field and pressure field for three kinds of apparatus of making synthetic diamond under high pressure and high temperature were compared in this paper. the differences of these main apparatus were analyzed according to the degree of difficulty and ease in the technique, the choice of applicability and the cost and yield of them. it was emphasized that studying and developing the large sized belt - type press should be the way to make high quality saw diamond and change the state of making middle and low quality diamond in the diamond industry of our country, catching up with the international advanced level as well

    文摘:通過對高溫高壓合成金剛石3種主要裝備在關鍵部件受力狀況與使用壽命、高壓腔體積與壓力利用率、高壓沖程大小與壓力穩定性，高壓腔變形與溫場、壓場的關系等方面的比較，分析了3種主要裝備在技術難易程度、適用性選擇和投入產出比的差異；強調了我國金剛石行業要改變當前只能生產中低檔金剛石的現狀，向生產高品級鋸片級金剛石的方向發展，與國際接軌，應該走大型化兩面頂的道路。
  13. The forced state in key parts and their lifetime, the volume of high pressure chamber and ratio of pressure, the length of high pressure stroke and pressure stability, the relations between the deformation of high pressure chamber and temperature field and pressure field for three kinds of apparatus of making synthetic diamond under high pressure and high temperature were compared in this paper. the differences of these main apparatus were analyzed according to the degree of difficulty and ease in the technique, the choice of applicability and the cost and yield of them. it was emphasized that studying and developing the large sized belt - type press should be the way to make high quality saw diamond and change the state of making middle and low quality diamond in the diamond industry of our country, catching up with the international advanced level as well

    通過對高溫高壓合成金剛石3種主要裝備在關鍵部件受力狀況與使用壽命、高壓腔體積與壓力利用率、高壓沖程大小與壓力穩定性，高壓腔變形與溫場、壓場的關系等方面的比較，分析了3種主要裝備在技術難易程度、適用性選擇和投入產出比的差異；強調了我國金剛石行業要改變當前只能生產中低檔金剛石的現狀，向生產高品級鋸片級金剛石的方向發展，與國際接軌，應該走大型化兩面頂的道路。
  14. Short cut key stroke equivalents display next to main menu items

    快捷鍵等效方式顯示在主菜單項旁邊。
  15. The main finding of sparcl, he said, was that atorvastatin reduced the risk of stroke by 16 percent in patients who recently had a stroke or tia, a condition in which blood flow to a portion of the brain is temporarily reduced

    他說， sparcl研究最大的發現是：阿托伐他汀能降低16在最近有卒中和短暫性缺血（就是一部分的腦血流暫時性的減少的情況）發作經歷的患者的再次卒中的危險。
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