牙用鉆頭 的英文怎麼說

中文拼音 [yáyòngzhēntóu]
牙用鉆頭 英文
dental bit
  • 牙 : 名詞1. （牙齒） tooth 2. （象牙） ivory 3. （形狀像牙齒的東西） tooth-like thing 4. （姓氏） a surname
  • 用 : Ⅰ動詞1 （使用） use; employ; apply 2 （多用於否定: 需要） need 3 （敬辭: 吃; 喝） eat; drink Ⅱ名...
  • 鉆 : 鉆Ⅰ名詞1. （打眼用的工具） drill; auger 2. （指鉆石） diamond; jewel Ⅱ動詞（用尖物在另一物體上轉動） drill; bore
  1. Based on the tribological principle and the theory of contact mechanics, it is feasible to adopt curvature - changing structure in the rock - bit journal bearing system. the structure and coupling relationship of curvature - changing journal bearing under the condition without friction have been analyzed and three kinds of sub - form structure configurations, namely, the pseudo - curvature - changing structure, the conformable curvature - changing structure, and the clearance curvature - changing structure, been differentiated according to the contacting features. the shape optimization and pre - running - in regulations of the contact surface of curvature - changing journal bearing under friction condition have been established. the results of rock bit journal bearing test indicate that the tribological behavior of the bearing can be effectively improved by curvature change based on both designing and pre - running - in

    基於摩擦學原理和接觸力學理論，提出了可在牙輪鉆頭滑動軸承中採用變曲率結構.在不考慮摩擦的情況下，就結構設計和配合關系等問題進行了分析討論，劃分了準變曲率、吻合變曲率以及間隙變曲率等3種結構形式；針對考慮摩擦時的變曲率結構，提出了接觸形狀優化和預磨合的實施方案.鉆頭軸承試驗結果表明，無論是預設計變曲率還是預磨合變曲率，都能改善軸承摩擦副的摩擦學特性，因而值得進一步研究和推廣
  2. Blast hole tricone rock bits

    礦用三牙輪鉆頭
  3. But now the use of the spherical one - cone bit shows that the teeth are abrade heavily in advance, which affects the velocity and life of the bit

    但是目前油田上使用的球形單牙輪鉆頭由於牙齒先期磨損嚴重，影響了鉆頭的機械鉆速和壽命。
  4. A new type rod damping stabilizer for rotary drills ispresented. it can increase the service life of rotary bit by about 27 % and its own life is over ten thousand meters. as a result, good econom ic benefit can be obtained

    介紹了牙輪鉆機用的一種新型減振穩桿器，提高牙輪鉆頭使用壽命27 %左右，其本身使用壽命超萬米，獲得了良好的經濟效益。
  5. 14 drilling with cone ( drag ) bit in the section

    此段地層採用牙輪（刮刀）鉆頭鉆進。
  6. According to achievements in research, using face - radial sealing structures can adapt to the developing trend of increasing rotary speed of cone bit to a certain extent in lubricating system of bearing seal, which is cramp to bit service life

    本文的研究表明，在偉l ]約鉆頭壽命的軸承密封潤滑系統中，採用端面一徑向組合密封結構能夠在一定程度上適應牙輪鉆頭轉速提高的發展趨
  7. To enhance the reliability of bearing seal of cone bit, this paper plans to adopt face - radial combination sealing structures ; that is to say, end - face and radial seal are arranged in one bit simultaneously. the nonlinear finite element method is applied to analyze and optimize the design of sealing structures

    為了提高牙輪鉆頭軸承密封的可靠性，本文設計採用端面-徑向組合密封結構，即在一隻鉆頭中同時布置端面和徑向密封，採用非線性有限元方法對密封結構進行分析和優化。
  8. But in the absence of modern metal tools the neolithic drill of choice 9, 000 years ago was a flint head, according to roberto macchiarelli, of the university of poitiers in france

    據路透社4月6日報道，法國poitiers大學的科學家羅伯特馬基亞切利表示，由於當時沒有現在所使用的金屬工具， 9000年前人們用來鉆牙的工具其實是一個燧石的尖頭。
  9. By means of the software of pro / e we studied the movement of the bit and obtained some data reports about different parameter bit. in the environment of visual basic the trace program can compute the well - bottom outline. it also can draw the trace and the velocity curve that the teeth scrape the well bottom

    分析方法是在pro / e中對試驗鉆頭進行運動模擬，得到不同結構參數和傳動比的鉆頭運動的數據文件，然後進入用visualbasic高級語言編制的異形牙輪單牙輪鉆頭分析軟體中，計算出鉆頭的井底輪廓曲線，並繪制鉆頭井底軌跡和牙齒刮切井底的速度曲線。
  10. In chapter six, based on the preceding chapters " research, the practicality of the full scale dr i 11 ing simulating test device has been tested by the debugging and the performance test. under simulating drilling conditions, the rock mechanical properties and the bits " dynamical tests are analyzed and set forth specifically. at the same time the effect of bottom pressure difference on the oil field exploration and development has been discussed

    第六章在前述分析研究的基礎上，通過對模擬裝置的系統調試及性能測試，驗證了全尺寸鉆井模擬裝置的實用性，在鉆井模擬條件下對巖石的機械性質、牙輪鉆頭動態測試給予了具體的分析闡述，同時還分析探討了井底壓差對油田勘探開發的影illb ，並且為宋深101井的實際施工作業提供了非常有價值的指導參數。
  11. Application the system to the design of tri - cone rock bit, will shorten the developing cycle of new products, and improve the design quality, and increase the technology innovation of enterprise and enhance the market competition

    通過本軟體的應用，可以縮短三牙輪鉆頭的設計周期，提高產品的設計質量，提高企業的技術創新能力和市場競爭能力。
  12. It is not reported that any software has been developed on the engaging design of tri - cone rock bit with pro / e workbench in china and other countries. therefore, this software is developed with pro / e2000i on 2d engaging design and 3d models design of cones and inserts and their assembly, and the program languages are pro / toolkit and delphi

    在pro e環境下開發三牙輪鉆頭的嚙合設計在國內外還未見到，因而本系統選擇pro e為二次開發平臺，採用參數化設計思想，利用pro toolkit和delphi聯合編程，適合三牙輪鉆頭二維嚙合設計、牙輪牙齒三維實體造型和裝配。
  13. The design that the active protection is taken in the paper is a breakthrough of common methods of gage protection. on the basis of the well - done roller cone bits and pdc bits, three practicable schemes are provided. as a result of selection and design, two brand - new multiple drill bits are invented, that is, protector - tri - cone mdb and protector - single - cone mdb

    本論文突破傳統的被動保徑思維，採用主動保徑方法，並在業已成熟的牙輪鉆頭和pdc鉆頭技術的基礎上，提出了三種可行的復合鉆頭實施方案，並經過精心選擇和設計，推出兩種新型復合鉆頭，即變徑保徑器?三牙輪復合鉆頭，變徑保徑器?單牙輪復合鉆頭。
  14. The service life of cone bits which play an important role in breaking rock of the bottom of a well is almost directly decided by the life of bit bearing, which depends a large extent to the life of their seals

    牙輪鉆頭在井底破巖中起著主導作用，它的使用壽命幾乎直接取決于鉆頭軸承的壽命，而軸承的壽命在很大程度上有依賴密封的壽命。
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