標準密度級 的英文怎麼說

中文拼音 [biāozhǔnmìdùjí]
標準密度級 英文
standard hard board
  • 標 : Ⅰ名詞1 [書面語] （樹梢） treetop; the tip of a tree2 （枝節或表面） symptom; outside appearance; ...
  • 準 : Ⅰ名詞1 （標準） standard; guideline; criterion; norm 2 （目標） aim; target Ⅱ動詞1 （依據; 依照）...
  • 密 : Ⅰ名詞1 （秘密） secret 2 [紡織] （密度） density 3 （姓氏） a surname Ⅱ形容詞1 （距離近; 空隙小）...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 級 : Ⅰ名詞1 （等級） level; rank; grade 2 （年級） any of the yearly divisions of a school course; gra...
  • 標準 : （衡量事物的準則; 榜樣; 規范） standard; criterion; benchmark; pip; rule; ètalon （衡器）; merits
  1. Methods : we have divided the 636 molars ( without dental caries or pathological changes of root ) collected in school of forensic medicine and stomatological hospital in shanxi medicine university into four groups : maxl, max2, manl, man2, and selected 5 indexes closely related to changes of dental age ( dental attrition, contact area, the index of dentine marrow cavity, the thickness of cementum of root, the diaphaneity of dentine of root ), and proposed the grading standard and scoring standard date processing and statistical analysis after measuring the teeth of the four groups

    方法：從山西醫科大學法醫學院及口腔醫院收集的636磨牙（無齲壞、無根尖病變）分為max1 、 max2 、 man1 、 man2四組，根據牙齒的增齡變化特點，篩選了5個與牙齡變化密切相關的指標（牙齒的磨耗、接觸區面積、牙本質髓室指數、根尖牙骨質的厚度、根尖牙本質透明） ，提出了指標的分級標準和評分標準，對各組的牙齒測量后進行數據處理和統計分析。
  2. Based on test method of national standard of anti - deflagration, influences of moisture and charge density on anti - deflagration of permissible expanded ammonium nitrate explosive have been tested and investigated, residual mass of acceptor explosive have also been measured at same time

    摘要根據抗爆燃性有關標準的測試方法，詳細地測試和研究了水分和裝藥密度對受試的一級和二級煤礦許用膨化硝銨炸藥的抗爆燃性的影響，同時測定了被發裝藥的殘藥量。
  3. 2. mdf medium density fiberboard - primed : it is an environmentally friendly, strong ande versatile material made from wood chips blended with wynthetic resins

    松木集成材：英文： integrated materials符合e1級環保標準中密度纖維板：英文： mdf符合e2級環保標準
  4. The principles of erasure codes used under binary erasure channels are summarized and erasure codes which belong to standard classes of rs codes are introduced with emphasis on cascaded low - density erasure codes with linear time encoding and erasure recover algorithms. thresholds of regular degree distributions are analyzed. it is shown that low - density erasure codes based on ( d, 2d ) - regular sequences of degree distribution are not close to optimal ( d 3 ). two pares of irregular degree distribution sequences are introduced and a pare of improved right regular sequences of low - density erasure codes are presented, it is testified that the new sequences are asymptotically quasi - optimal. in the meantime, simulations of cascaded low - density erasure codes based on a few types of special sequences of degree distribution available are given, together with performance analyses on these codes

    闡述了應用於刪除通道下的糾刪碼基本原理，介紹了兩類標準的rs碼類糾刪碼，重點分析了具有線性時間編碼和恢復演算法的漸近好碼?級聯型低密度糾刪碼，分析了正則度分佈的閾值，對正則低密度校驗碼在刪除通道下的糾錯性能進行了模擬，從理論上證明了基於（ d ， 2d ） -正則度序列的低密度糾刪碼都不是漸近最優碼（ d 3 ） ，同時還分析了非正則低密度校驗碼的度序列設計，基於右邊正則序列提出了一種改進型右邊正則序列，證明了此序列為漸近擬最優的，對基於幾類現有典型度分佈序列的級聯型低密度糾刪碼進行了模擬模擬及性能分析； 3
  5. An investigation of the rijndael algorithm which is the advanced encryption standard of usa is taken in this thesis. we have focused on developing the cryptographic properties of the rijndael sbox from the viewpoint of boolean function, walsh spectrum and algebraic structures, on the attacks against the reduced variants of rijndael, and on the optimized implementations of rijndael. the key contributions follow below

    本文對美國高級加密標準rijndael演算法進行了比較深入的研究，內容包括：從布爾函數、 walsh譜和代數結構的角度對其s盒密碼性質進行的研究，簡化演算法的攻擊方法以及演算法的優化實現問題，主要成果有： 1 、提出求解布爾函數表達式的兩種新方法，具有簡潔、易於編程實現、準確而快速的特點，應用於des演算法獲得與公開文獻相符的結果，應用於rijndael演算法首次求出其s盒布爾函數表達式。
  6. Aees employs the multi - staged digital filter algorithm to reduce random error. meanwile, the system correct zero deviation through linear opreation. the instrument, from hardware aspect increases the feature of anti - interference by the way of reasonable layout, sepration of digital and analogue

    系統採用了中值濾波和滑動平均濾波相結合的多級數字濾波演算法來減小隨機誤差，並以精密基準電壓作為比較信號的輸入，由智能系統通過線性運算，實時地修正、校準測量數據，減小系統的零漂，實現自動定標並提高測量的精度。
  7. Erasure codes which belong to standard classes of rs codes and their erasure correcting principles are introduced with emphasis on cascaded low - density erasure codes with linear time encoding and erasure recover algorithms. the encoding and decoding complexities of these codes are analyzed. 2

    介紹了標準的rs碼類糾刪碼及其糾刪原理，重點介紹了具有線性時間編碼和恢復演算法的漸近好碼?級聯型低密度糾刪碼，分析了這幾類糾刪碼的編譯碼復雜度； 2
  8. Been taken to the precision parts of hydraulic systems with servo - parts internationally. and the cleanliness of the infused new oil should reach the requirement of grade 5 of nas1638 so as to ensure the system stability and running reliability

    為此，國際上對液壓系統中帶有伺服機件等精密元件的油液清潔度採取嚴格的控制，對加入的新油清潔度要求達到美國宇航標準nasl638的5級，以確保系統穩定可靠運行。
  9. In the chapter of component based database access agent, the component criterion for the agent is selected and the component frame of the agent is designed based on the discussion for the component development technology. in the chapter of the platform of network communication, its operational principle is discussed at first, then the program structure of the platform and the key technology of encrypted network transmission is focused. in the chapter of the design and implementation of the server of the agent, the operational principle is researched, the program structure is designed, and the key technologies of database flux control, data buffer, and database security are studied

    基於組件的數據庫訪問代理設計介紹了組件開發技術、數據庫訪問代理的組件標準選擇及數據庫訪問代理的組件框架設計；網路通信平臺設計和實現研究了網路通信平臺的工作原理、實現過程中使用的基本技術，論述了網路加密傳輸關鍵技術，設計了網路通信平臺的程序結構；代理服務端設計和實現研究了代理服務端的工作原理，論述了數據庫流量控制和訪問優先級調度、數據緩沖及安全數據庫支持等關鍵技術，設計了代理服務端的程序結構；代理客戶端設計和實現研究了代理客戶端的工作原理，設計了代理客戶端的程序結構和組件介面。
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