鉆針 的英文怎麼說
中文拼音 [zhēnzhēn]
鉆針
英文
burs-
Secondly, programmed the image processing arithmetic code which include the bottom arithmetic for the general condition comprises threshold division, region combination and informate and the middle level arithmetic for the given task comprises detecting the line dation creirection according to the hough transform in order to fix on the hole ’ s azimuth angle, detecting the aiguille tip position according to the image movement according to the environment and the image format
然後，根據目標環境要求和攝像機採集圖像格式，開發了圖像處理演算法程序。圖像處理演算法包括底層演算法和中層演算法兩部分，底層演算法針對通用情況，包括閾值分割、區域合併和信息生成。中層演算法針對具體任務設計，包括利用hough變換檢測棱線的方向，從而確定圓孔的方位角和利用基於圖像運動檢測鉆頭尖端位置。The local directional drilling is just staring in terrane, the equipments and the technologies ca n ' t satisfy far and far the spot construction needs, according to current circumstance and considing the existed equipments, the author put forward drilling by air hammer in terrane, having designed compounded - drilling tools, and recommended technology parameters. producing experiments have obtained good achievements in economic and in techniques
國內定向鉆進鋪管技術在巖層只是剛剛起步，設備、工藝遠遠不能滿足現場施工需要，本文針對國內、外巖層定向鉆進非開挖設備及工藝現狀，結合國內大多施工單位的已有設備，提出巖層空氣潛孔錘導向鉆進工法，設計了適合巖層鉆進的實用鉆具，並提出具有針對性的工藝參數，生產性試驗取得了良好的經濟技術指標。Iron rulers, butterfly knives, short - hilted broadsword, trident, sharp iron pole, great speed sword, five element pole, yellow cow twisting tongue pole, poisonous snake pole, cicada catching pole, nine - segment steel whip, iron balls, etc
?尺，子母刀，單刀，大耙， ?針，追風劍，五行棍，黃牛鉆咀棍，毒蛇棍，捕蟬棍，九節鋼鞭， ?鴛鴦等A diamond brooch, not large but dainty in design
一個鉆石胸針不大但設計得很精美。This diamond brooch is my most valuable piece of jewelry
這個鉆石胸針是我最貴重的一件珠寶。This diamond brooch is my most valuable piece of jewellery
這個鉆石胸針是我最貴重的一件珠寶。A diamond clip was pinned to her dress.
一支鉆石別針別在她的衣服上。First this paper describes the composing and technics of drillers ; then the composing of control system based on s7 - 300plc is described ; then thinking of such characteristics of oil driller as complexity and long delay, this paper brings forward the control strategy of combining the fuzzy control with smith estimate control algorithm, and sets down the way of auto - driller based on discal hydraulic pressure brake. at last the experiment based on matlab by computer shows that the effect of this control mode is very good and all performance are famous
首先本文闡述了鉆機的組成與工藝特點，然後描述了基於西門子s7 - 300plc的控制系統組成，然後針對傳統鉆機自動送鉆控制策略落後的缺陷，同時考慮到鉆機的復雜性、大滯后等特點，提出了模糊控制演算法與施密斯（ smith ）預估控制演算法相結合的控制策略，給出了基於液壓盤式剎車的自動送鉆智能控制策略， matlab的模擬實驗證明該控制方式控制效果良好，各方面性能指標都達到理想要求。His scarfpin was a large diamond, oddly set.
他的領帶別針是一顆很大的鉆石，不過鑲嵌得奇特古怪。My wife was asking for pin money, and the pin she wanted has eight diamond in it
內人跟我要針線錢（零用錢） ，而她想買的那根針是鑲有八粒鉆石的呢。We developed the power system of electric drill based on dc - ac. the system use the technique of spwm frequency cowersation control. it changed th d. c provided by trolly wire of d. c motor into stable a. c adopted igbt and driving circuit adopted high speed module of exb840
針對當前我國煤礦電鉆電源的使用現狀，提出研製dc - ac變換的電鉆電源系統，該電源系統直接利用spwm變頻控制技術，將井下直流電機車的架空線所提供的直流電轉變成頻率是50hz的1 . 27v的穩定交流電。Guided by the theory of sequence stratigraphy and petroleum system using cores, lithologic log or well - logging, biostratigraphic and seismic data, adopting seismic inversion constrained to well data, digital analysis technology, basin modeling, test method and so on, and adopting an integrated study technology, aiming at lower exploration in chagan depression, this work put forward a new research thoughtfulness, technic flow and method system that is an integrated study by " looked upon sequence stratigraphy as a base, looked upon petroleum system as a integer, combing with each other closely " and tie in qualitative analysis and quantitative analysis and applied synthetically new theory, new technology and new method
以層序地層理論和含油氣系統思想為指導，利用巖心、鉆/測井、古生物以及地震資料，採用井約束下的地震資料反演技術、計算機技術、盆地模擬技術和各種分析實驗手段等綜合分析方法，針對查干凹陷勘探程度低的特點，提出了斷陷盆地「以層序地層分析為基礎、含油氣系統為整體（系統）和二者緊密結合」以及定性與定量相結合，綜合應用新理論、新技術和新方法的研究思路、技術路線和方法體系。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Abstract : according to sidewall unstable problem during dr illing, the study on sidewall stability is developed. the paper analyses sidewall stress state and sidewall unstable type, and combines with log data and indoor e xperimental result of core. through analysis and calculation, the method of calcul ating slough formation pressure is proposed. by application of the method in 3 wells in yancheng area, result shows that slough pressure section fits in with field practical condition. it supplies some basis for design of drilling fluid d ensity
文摘:針對鉆井中井壁失穩問題開展井壁穩定性研究，文中就井壁應力狀態和失穩類型進行分析計算，並結合測井資料和巖心的室內實驗結果進行分析，建立了一套計算地層坍塌壓力的方法，結合鹽城地區3口井應用對比，坍塌壓力剖面基本吻合現場實際，為鉆井液密度設計提供了一定的依據。Carmela was attired like a woman of sonnino. her cap was embroidered with pearls, the pins in her hair were of gold and diamonds, her girdle was of turkey silk, with large embroidered flowers, her bodice and skirt were of cashmere, her apron of indian muslin, and the buttons of her corset were of jewels
她的帽子上繡著珍珠，她的金發針上嵌著鉆石，她的腰帶是土耳其綢做的，上面繡著幾朵大花，她的短衫和裙子是克什米爾呢子做的，她的圍裙是印度麻紗的，她胸衣上的紐子都是大粒的珍珠。The genesis and variation characteristics are suggested on the basis of the analysis of typical groundwater hydro - chemical section monitoring, geographical prospection data and hydro - chemical analysis from more than 100 geological cores
通過對濰河下游地區100餘個地質鉆孔水化學連續監測資料分析，闡明了鹹水入侵的特徵，有針對性地提出了鹹水入侵的防治措施。There are three undergraduate programs that lead to the degree bachelor ' s of science in mathematics : a general mathematics option, an applied mathematics option for those who wish to specialize in that aspect of mathematics, and a theoretical mathematics option for those who expect to pursue graduate work in pure mathematics
大學部有三種數學學士的課程規劃：一般性數學學位、針對想要鉆研應用數學的應數學位、針對想要研究純數的理論數學學位。Therefore, a positive research method was adopted to put forward two hypotheses during the oil and gas drilling works, i. e, a certain relation existed between operation ' s cost and drilling footage and cycle respectively
為此，採用實證研究方法，針對油氣鉆井作業的過程提出兩個假設：鉆井作業成本與鉆井進尺呈一定的比例關系；鉆井作業成本與鉆井周期呈一定的比例關系。In accordance with the increasing need of the drilling missions and the developing actuality of environmental and scientific drilling machines, we have designed the drill machines and drill tools, and put forward the technology rules
針對日益增長的環境科學取心鉆探任務的需要，以及我國在環境取心鉆探設備領域的研製現狀，我們設計了滿足該需求的鉆探機具，並提出了相應的鉆進工藝規程。Suggestions for post insertion are as follows : 1. the stress can be reduced by counterrotating the dowel one - fourth turn after resistance to installation has been detected. 2. the channel should be cleaned thoroughly before post insertion. 3. because accurate post fit is important to maximize both retention and support, the screw post should be used with the matched post / reamer syste ; and accurate contrangle drilling should be maintained
3 .由於根柱和根柱孔的精密吻合，對于固位及力量傳遞的支持有重要的影響，因此打樁時要精確做到根柱孔的鄉鉆制，對于偏斜的彎機要避免使用，而且要選用同號組合配對的鉆針。分享友人