難度分數 的英文怎麼說
中文拼音 [nándùfēnshǔ]
難度分數
英文
difficulty score-
Because at present pay of worker of this city company expends scale, be 5 %, the certain proportion that because this needs to press individual capture from inside business pay cost, expends base delimits individual account, the enterprise delimited individual account part is 1998 6 %, will expend as individual capture henceforth proportional rise, the enterprise delimits collapse of individual account share is decrescent little namely scale of individual pay fee increased difficulty 1999 a percent, the enterprise delimits the part reduces a percent, scale of final pay fee rises 8 %, the enterprise delimits the share drops to 3 %
由於目前本市企業職工繳費比例為5 % ,因此需要從企業繳費中按個人繳費基數的一定比例劃入個人帳戶, 1998年企業劃入個人帳戶部分為6 % ,今後隨著個人繳費比例的提高,企業劃入個人帳戶部分傾漸減少即1999年個人繳費比例提高難度1個百分點,企業劃入部分降低1個百分點,最終繳費比例提高到8 % ,企業劃入部分降至3 % 。The difficulty of decoding based on cryptograph and public key is equal to the difficult } " of dividing the product of two big prime numbers
從一個公開密鑰和密文中恢復出明文的難度等價于分解兩個大素數之積。As we know, inverse techniques make blade ' s profile well compatible with its surface velocity distribution, however, they give designers big challenges that the ideal velocity distribution is hard to obtained and sometimes the non - physical solution, such as double covering of flow field or unclosed profiles, would come out. the proposed design procedure in the paper has avoided the disadvantage mentioned above. in this paper, a quasi - irrotational equation is used to describe the flow in cascade instead of the generally used irrotational equation
眾所周知,一般的反問題和混合問題的最大特點,是在給定的壓力面和吸力面上的壓力分佈或速度分佈條件下,直接得到葉片的幾何形狀,它可以使葉型型面與表面氣流參數有機結起來;其不足之處在於,對設計者而言,很難給定理想的葉片表面壓力分佈或速度分佈,並且有時會得到一個非物理解,如:得出的初始葉型可能會出現前緣、尾緣不封閉的現象。Disigning coolant channel on the firebox of liquid rocket engine to loxodrome ( equal - angle helix ) groove can improve firebox coolant capability greatly. because the width dimension of loxodrome groove is narrow and the depth is deep, some machining methods are incapable, such as end - milling or electrochemistry. according to the peculiarities, a cnc disk - cutter - milling method which is composed of five motion axes with four simultaneously interpolated ones is researched. because most firebox generatrix is composed of complex curves, it is very difficult to get cnc cutting program with manual means. in order to deal with the problem, the loxodrome mathematics model is studied, and an auto - programming software system is developed. the software system can generate cnc cutting program of loxodrome on many kinds of turned surface. the constriction - distension segment of firebox is the most representative workpiece. the sharp changing of its generatrix slope makes loxodrome milling difficult. with the theory analyzing and practice cutting experiment, some applied techniques, which include milling mode and direction, choosing cutter diameter and cutting start point setting, are developed. adopting the technology above, tens regular workpiece have been manufacturing. the two - year manufacture practice has confirmed the validity and feasibility of developed loxodrome coolant channel milling method. the developed technology is also worth to be referenced to other similar workpiece
將液體火箭發動機燃燒室的冷卻通道設計為斜航線(等傾角螺旋線)槽形,可以大幅度改善燃燒室的冷卻性能.斜航線冷卻槽的槽寬尺寸較小而槽深尺寸較大,所以無法使用棒銑刀銑削、電化學等加工方式.針對這些特點,提出了五軸控制、四軸聯動的數控片銑刀銑削加工方法.由於燃燒室外表面的母線輪廓復雜,手工編制數控加工程序難度大.為了解決數控加工程序的編制問題,研究了斜航線的數學模型,開發了自動編程軟體系統.使用該系統,可以生成多種母線輪廓回轉體外表面上的斜航線數控加工程序.燃燒室收斂-擴張段的母線斜率變化大,加工難度大,是斜航線冷卻通道加工的最典型工件.經過理論分析和實際切削實驗,研究了針對該類型工件的片銑刀直徑選擇、銑削方式和方向、刀具調整和起刀點的設置等多項實際的加工方案.採用上述的一系列技術,已經成功地加工了數十個合格工件.經過兩年多的實際生產過程應用,驗證了所開發的斜航線冷卻通道加工方法的正確性和可行性.這些加工技術的研製成功,對其他相似類型零件的加工亦具有參考意義It is just the difficulty that the strongly correlated electron systems can not be studied by analytical methods, a variety of simulative numerical methods come out sequentially. there are a few typical methods such as the exact diagonalization ( ed ), the qutum monte carlo ( qmc ), the variation monte carlo ( qmc ), the renormalization group ( rg ), and the density matrix renormalization group ( dmrg ) and so on
正是強關聯系統遇到了解析研究的困難,各種數值模擬方法才相繼出現,最典型的數值方法有:嚴格對角化( ed ) ,量子蒙特卡洛( qmc )模擬、變分蒙特卡洛模擬( vmc ) 、數值重整化群( rg )以及密度矩陣重整化群( dmrg )等。The efficiency of making use of economic resources in china is low, and one of the most important reasons about economic performance is that the national industry exists many defects, such as the low economic level of scale, the whole character of business enterprise not getting to increase with product construction over a long period of time, the small business enterprise increasing blindly, which causes the bargain of times increase and the trade expenses rise unduly, the lower degree of profession and cooperation, many more types of business enterprises, but lack of cooperation with the related and large business enterprises in the production, operation etc, so being difficult to take advantage of and share economy scale with big business enterprise ; the bad market performance and so on
中國經濟發展中資源利用效率低,而經濟效益低下的一個重要原因是國有工業發展中存在許多缺陷:規模經濟水平不高,企業整體素質和產品結構長期得不到提高,小企業盲目增加,導致交易次數不適當地增多,交易費用上升;生產專業化協作程度較低, 「大而全」 、 「小而全」的全能型企業大量存在,但缺乏與相關大型骨幹企業在生產、經營等方面的協作,難以分享大企業規模經濟的好處;市場運作績效差等。Afterwards, a new strategy of robust optimization design process of three stages based on tolerance model and taguchi methods is advanced. this process makes full of the intense complementary action of characteristics between tolerance model and taguchi methods. it realizes the result of high accuracy and efficiency by the application of this strategy
之後,充分利用容差模型法和田口方法這兩種方法的優缺點之間所具有的強烈互補性,提出了基於容差模型法和田口方法的三階段穩健設計進程策略,針對工程問題優化模型不同的求解難度,又分成數值計算型穩健設計進程策略和解析計算型穩健設計進程策略,從而實現高效的求解效率和高精度的優化解。Focus on the method of driver usb device in labview develop environment, three ways ( i / o, cin, clf ) were discussed, and the way of using visa ( visual instrument software architecture ) to communicate with usb device was used that can easily develop instruments driver and application software and improve the applicability of instruments on various operating systems
並重點分析了常用的labview開發環境下驅動自製數據採集卡的三種方式:直接訪問寄存器方式;調用c語言源代碼方式;調用動態連接庫函數的方式。提出了利用visa ( visualinstrumentsoftwarearchitecture )來直接驅動usbraw設備,簡化驅動程序和虛擬儀器軟體的開發難度,提高儀器在多種操作平臺上的通用性。There are two series interface installed on the os in advance, the one is called bsd socket designed by berkeley software, with the working mode of blocking synchronization, nonblocking asynchronization and polling, the other is named winsock designed by microsoft, worked via the way of windows message driven. as the foundation of process socket seizing technologies under microsoft windows, api ( application program interface ) hook technology is the core to achieve
Windows進程套接字數據劫持技術的基礎部分, windows應用程序介面api掛接技術,該技術是實現操作系統不支持的特殊功能的應用程序的核心,有相當難度,與傳統的基於網路設備介面規范( ndis )的包過濾技術相比,該技術的不同之處在於它可以在應用層上對任意進程的網路輸入和輸出數據進行捕獲。Therefore, it is a puzzle to study the classification model, increase the class number and improve the detection ratio according to the classic classification algorithms
因此,不管是分類模型的建立,還是分類類別數目的擴展和分類率的提高,難度都相當大。In order to calculate difficult transportation cost between plants and distribution centers in the fitness value function, flow prediction algorithm was presented to find an minimum - cost flow patterns on an network composed of plants, consolidation centers and distribution centers with concave transportation costs and to obtain the appropriate fitness value
為了解決適應度函數中的工廠與分銷中心之間的運輸成本計算困難的問題,提出了流預測演算法,用於確定產品在工廠、集貨中心和分銷中心構成的凹費用流網路中的最優運輸路徑,進而獲得適應度函數值。Several numerical experiments are carried out to detect the actual steps and limitation for the velocity and depth parameter ' s ray inversion in the fourth chapter, and the we find that : a. the resolution capability of the layer ' s velocity change along both the top and bottom boundary is very poor. thus generally the vertical homogeneous layer model whose top velocity equal to that of its bottom boundary should be considered
本文的第四章通過一系列模型試驗詳細探討了利用射線反演方法反演速度和深度參數的實際步驟,認為走時反演對速度層內頂部和底部速度變化的分辨能力很弱,僅僅依靠走時數據難以反演出層內頂部和底部的速度變化,故一般情況下應採用速度層底部和頂部速度相同的縱向均勻模型。But at present, prior work on video content analysis is difficult of approach good result using video frequency data alone and is inapplicability to scene segmentation and video content classified
但是,目前僅僅根據視頻數據來提取視頻內容難度很大。單獨依靠現有的視頻處理技術不能準確地分割視頻場景和對視頻內容進行分類。Rsa algorithm is a algorithm for public key instrument. its security based on the difficulty of dividing big prime number
Rsa演算法是一種公開密鑰演算法,它的安全系數取決于大素數分解的難度。So the plate - like drawing correcting process can be divided into two stages : absolute errors checking and comparative errors checking absolute errors checking include four modules which were line - weight checking, hatch checking. dimension checking and overlapped line checking comparative errors checking module include drawing compartmentalization, view recognizing, data getting and data compare in this correction system, line - scanning and circle - scanning algorithm, direct graphics element compare algorithm and character compare are used, which simplify the process and reduce difficulties
相對錯誤檢查包括區域劃分、視圖識別、數據提取、數據提取等過程。相對錯誤的判斷依據是答案圖。本批改系統採用直線和圓弧掃描演算法,並且結合圖形元素直接比較法和特徵比較法,既簡化了處理過程,又降低了處理難度,比較圓滿地完成了開題報告確立的任務。This paper discuss that we analysis and deal with examine data by means of computer assist, estimate the difficulty, degree of differentiate, believe degree of examination paper, efficiency degree so on, deal with examine data. it give statistical distributing about examine result person percentage, standard fraction plenty give play to strong point of assess and diagnosis, feed back and inspirit function
利用計算機輔助手段,對考試成績進行處理和分析,在試題難度、區分度、試卷信度、效度等方面給出定量的估計,並對考試原始分數進行加工,在此基礎上,得到班級成績的統計分佈,個人的百分等級和標準分數,以充分發揮考試的評定與診斷,反饋與激勵功能。Abstract : this paper discuss that we analysis and deal with examine data by means of computer assist, estimate the difficulty, degree of differentiate, believe degree of examination paper, efficiency degree so on, deal with examine data. it give statistical distributing about examine result person percentage, standard fraction plenty give play to strong point of assess and diagnosis, feed back and inspirit function
文摘:利用計算機輔助手段,對考試成績進行處理和分析,在試題難度、區分度、試卷信度、效度等方面給出定量的估計,並對考試原始分數進行加工,在此基礎上,得到班級成績的統計分佈,個人的百分等級和標準分數,以充分發揮考試的評定與診斷,反饋與激勵功能。The mathematic models of sampling and reconstruction are analysed respectively, and an important conclusion is got, that oversampling can decrease high frequence distortion of d / a output signal and the difficulty of designing lowpass filter. as a result the signal quality is improved
分析了采樣和重構的數學模型,得出了一個重要結論:過采樣可以減少d / a輸出信號的高頻端衰減失真,可以降低低通濾波器的設計難度,從而提高波形質量。This paper discusses our method to evaluate the uncertainty components of chilled mirror hygrometer during calibration process, and also a few possible influencing factors we are interested in
本文討論了冷鏡式露點儀測量不確定度的多種因素,其中有些不確定度分量目前還難以估算出具體數據。The australians received marks of 7. 5 and 8. 0 for their final effort, and a forward 2 1 / 2 somersault with two twists that equaled the highest degree of difficulty of any dive in the event
澳大利亞人在最後一跳中獲得了7 . 5分和8 . 0分的成績,所做的動作是一個前翻騰2周半加上兩個轉身,其難度系數是這個項目中最高的。分享友人