鉆上了數學 的英文怎麼說
中文拼音 [zhēnshànglēshǔxué]
鉆上了數學
英文
study hard at mathematics- 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
- 上 : 上名詞[語言學] (指上聲) falling-rising tone
- 了 : 了助詞1. (用在動詞或形容詞后, 表示動作或變化已經完成) 2. (用在句子的末尾或句中停頓處, 表示變化, 表示出現新的情況, 表示催促或勸止)
- 數 : 數副詞(屢次) frequently; repeatedly
- 學 : Ⅰ動詞1 (學習) study; learn 2 (模仿) imitate; mimic Ⅱ名詞1 (學問) learning; knowledge 2 (學...
- 數學 : mathematics
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This study is a post - cruise study of this leg, calcareous nannofossil samples from sites 1146, 1147 and 1148 of leg 184 were analyzed to provide a high - resolution biostratigraphy for this leg and to investigate morphological variation of coccolith genus gephyrocapsa. the main results of this study are : 1. 12 late pliocene to pleistocene bio - events were recognized and 6 zones of martini ( 1971 ) were determined for the upper sediment sequences of sites 1146 and 1148
本文作為大洋鉆探項目船下后續研究的一部分,對184航次中的1146站位和1147 、 1148站位的樣品進行了分析和研究,在船上科學家已經建立起的地層框架的基礎上進一步加密采樣,對生物事件標志化石類別進行數量統計,進一步確定了12個生物事件在鉆孔中的深度,建立起了兩個站位的高解析度的鈣質超微化石生物地層框架。What exam of grade of numerical control machine wants to see you learn is which kind of machine, numerical control machine includes numerical control car specificly, mill, auger, grind, machining center is waited a moment, you need study machine of the system to add knowledge, be familiar with a machine tool, return practice of the machine on need, the most important is the person guidance that need knows, self - study is very difficult, the knowledge on book needs to combine practice a little, the proposal has gone ability school learns a few the basiccest knowledge ( 2 to 3 years ), there can be relevant grade letter after ability school graduates next ( from primary labour, intermediate class, senior worker worker, technician, senior technician, hind two kinds obtain the hardest, want knowledge not only even relevant experience, its wage scale is equal at the engineer, chief engineer one kind ) remain be about to rely on oneself to get
數控機等級考試要看你學的是哪一類機器,數控機器具體的包括數控車,銑,鉆,磨,加工中心等等,你需要系統的學習機加知識,熟悉機床,還需要上機實踐,最重要的是需要懂的人指導,自學很難,書本上的知識有些是需要結合實踐的,建議去好一點技校學習一些最基本的知識( 2到3年) ,然後技校畢業后會有相關的等級證書(從初級工,中級工,高級工,技師,高級技師,后兩種最難取得,不僅要知識還要相關經驗,其待遇級別等同於工程師,總工程師一類)剩下的就要靠自己鉆了。Then the article analyses the effecting elements about the economic result of blasting and puts forward some improving measures, and summarizes optimizing model on economic result of blasting both internal and overseas bearing upon. the theory is based on the blasting cost model, which proposed by dr. zhong hanrong. combining with the specialties of water and electricity engineering, starting off through blasting result, it emphasizing considers drilling cost, deep hole bench blasting cost, reblasting cost, and the cost of bottom fleet hole blasting that in mixed loading emulsion explosive blasting
本文在加拿大鐘漢榮博士提出的爆破成本模型基礎上,結合水電工程的特點,從爆破效果出發,著重考慮了應用混裝乳化炸藥爆破的鉆孔成本、深孔梯段爆破成本、二次爆破成本和爆破后根底淺孔爆破成本,以塊度、振動、安全為約束條件,以這四項成本最小為目標函數,廣泛收集各種爆破經濟技術條件,建立了爆破優化經濟數學模型。The performance of the pbg antenna using the new pbg cover together with a pbg substrate is studied by the fdtd method together with the pml boundary treatment. the numerical results show that a more focused beam radiated in the broadside direction is achieved. the gain of the pbg patch antenna in the forward direction is improved by about 6 db. the radiation directivity is improved significantly and reaches 11. 5 db, which is 0. 4 db less than the maximum value that is allowed physically for this size of the antenna ( this difference is about 4. 1 db less than the difference achieved by thevenot et al.,
用fdtd方法並結合pml吸收邊界條件,我們對加了這種新的覆層結構並且基底鉆孔的復合結構電磁(光子)晶體貼片天線的性能進行了研究,結果證明加了這種新的電磁晶體覆層結構以後,天線的波束收攏很多,並且向前輻射的增益大大提高,與普通天線相比,天線的e面和h面方向圖上向前輻射的增益均提高了約6db ,另外,該復合結構天線的方向性系數達到了11 . 5浙江大學博士學位論文db ,與該物理尺寸天線的方向性系數的理論極限值( 11 . 9db )相差0 . 4db ,該差值比thevenot等人設計的電磁晶體覆層天線的相應差值減少了約4 . 1db ,比qiu等人設計的電磁晶體天線的相應差值減少了約1According to the work principle, mechanical model theory and simulation analysis of the hydraulic control valve of the drilling tool, the optimal design parameters of the angle of center of circle of the high pressure hole of upside valve are proposed ; the influence of the charging and discharging lag times on palm supporting capacity is discussed ; and the theoretic basis of designing the control valve of the drilling tool is put forward in the paper
通過對調制式旋轉導向鉆井工具液壓盤閥機構的工作原理、力學模型的理論和模擬分析,給出了上盤閥高壓孔圓心角的最優設計參數;討論了充液、泄液滯后時間對巴掌支撐力的影響,提出了調制式旋轉導向鉆井工具控制閥機械設計和控制的理論依據。On the basis of considering the influences upon the conveyance motion of solid phased particles affected by parameters of motive path of sieve chest, inclination of sieve surface, azimuth of vibration, throwing index and adhesive resistance of well drilling liquid etc., the kinetics equations of conveyance speed and displacement of solid phased particles were established
在考慮篩箱運動軌跡、篩面傾角、振動方向角、拋擲指數和鉆井液粘附阻力等參數對固相顆粒運移影響的基礎上,建立了固相顆粒運移速度和位移的動力學方程。In this thesis, a internal and external analyse and research about design, modeling and machining of ball - end cutters is reviewed. on the base of grinding trait of mk6335a five - axis numerical control drill grinder, in the present study, differential geometry, ruled surface concept, envelope and inverse - envelope theory, coodinate transfer and numeric analyse are used to develop a mathmatical model and systematic method for the design, analyse and simulation of ball - end cutters
本論文在國內外關于球頭立銑刀設計、建模、加工等方面研究的基礎上,根據現有的mk6335a五軸數控鉆尖磨床刃磨運動的特點,應用微分幾何、包絡與反包絡理論、坐標轉換、數值分析等理論知識,研究了基於五軸數控磨床加工球頭立銑刀的數學模型及分析與模擬。There have been many questions about the petroleum pool formation conditions and models for this area since the first well was drilled in 1988, which has had an great influence on the further petroleum exploration and development. in this study, a method with the combination of petroleum geology, sequence stratigrapy, organic geochemistry and geophysics, based on drilled core analysis data, well data and seismic sections, has been applied to investigate the petroleum pool formation conditions and models in this area, and the following results and recognition have been obtained : ( 1 ). the lower tertiary strata are subdivided into two sequences and seven systems
本研究以鉆井取心分析資料、測井數據、地震資料為基礎,綜合利用沉積學、層序地層學、石油地質學、地球物理學、有機地球化學等多門學科的有關理論和研究方法,通過對埕島東斜坡區油氣藏形成條件和模式研究,主要取得了以下幾個方面成果和認識: ( 1 )埕島東斜坡地區下第三系共劃分兩個層序、七個體系域,其中沙一段至東三段中下部沉積為層序,東三段上部至東一段為層序。In this paper, the author synthetically applied continental lake basin high - resolution sequence stratigraphy, sedimentation, well logging, petroleum geology, mathematics geology, etc, on the basis of studying on the core of the well drilling in the district, fully utilize logging well, well drilling core and testing and analyzing materials, adopting well logging - sedimentary facies automatical identification to study the characters of sedimentary facies and sub - facies further. and study sedimentary facies profoundly, and carry on sedimentary facies contrast well to well, to study yanchang 3 sector and yanchang 4 + 5 sector lithofacies palaeogeography character and evolution further
本文綜合應用陸相盆地高解析度層序地層學、沉積學、測井學、石油地質學、數學地質等理論,在對研究區內有關鉆井巖芯觀察的基礎上,充分利用測井、鉆井巖芯以及測試分析資料,並採用測井?沉積相自動識別等方法,深入研究了沉積相、沉積微相特徵,並進行井間沉積相對比,進而探討了長3 、長4 + 5期的巖相古地理特徵及其演化。By means of the drillstring ' s finite element model and the numerical solution method, and based on the mechanical models of bit / rock interaction, the dynamic models for torsional vibration of cone bits and drillstrings are established
利用鉆柱動力學有限元模型的數值計算方法,在考慮了鉆頭與巖石互作用力學模型的基礎上,建立了鉆頭和鉆柱扭轉振動動力學模擬模型。Thereby, this paper has carried through an in - depth study on wear mechanism between tool joint of drill pipe and casing, problems caused by wear and measures to deal with wear based on researches at home and abroad. the research contents include : in order to reveal mechanism of wear occurred between tool joint and casing, distribution of the contact pressure between the tool joint and casing for different loads was obtained with finite element method. furthermore, the mathematical model of maximum contact pressure and the wear depth on casing was established
所以,本文在國內外研究的基礎上,對鉆桿與套管摩擦磨損的機理、引發的系列問題及其預防措施進行了深入研究,研究內容主要包括:為探討鉆桿接頭與套管摩擦磨損的機理,採用有限元法研究了不同載荷下接頭與套管之間接觸壓力的分佈規律,並建立了最大接觸壓力與磨損量的數學模型。分享友人