降序鍵 的英文怎麼說

中文拼音 [jiàngxùjiàn]
降序鍵 英文
descending key
  • 降 : 降動詞1. （投降） surrender; capitulate 2. （降伏） subdue; vanquish; tame
  • 鍵 : 名詞1 [機械工程] （使軸與齒輪、皮帶輪等連接並固定在一起的零件） key 2 [書面語] （插門的金屬棍子）...
  1. Several key techniques of carving and milling machine cnc system are deeply studied they include : the transformation, data rebuild and interface design of huge volume nc program produced by cam ; the algorithm of cubic parametric spline pre _ interpolation and high speed real time interpolation in the cnc system, which. will gain a much higher surface precision and cutting speed ; methodology and algorithm of movement velocity acceleration control on a real time forecast _ and _ prejudge basis is designed. therefore, a smooth movement is insured. the shake and noise problem caused by non _ uniform pules for driving stepping or servo motor is solved by an improving algorithm to generate uniform pules

    同時，本文對基於統一的pc平臺的雕銑機數控系統中的幾項關鍵技術進行了深入的研究，包括： cam生成加工程序的傳送、接收、讀取及其加工鏈表的生成和實時重構；對cam生成的離散數據進行三次參數樣條插值和基於累加弦長的三次參數樣條插補控制，保證加工工件表面的精度和光順性；設計具有「前瞻」功能的自動升降速控制方法，保證加工過程的平穩性；通過脈沖均勻化，有效地解決加工過程中因為脈沖不均勻而引起的震動問題。
  2. In this paper, referring to qingju water power station, temperature control analysis and study has been done : study on the match ratio of the concrete and question of modifying of the special fine sand concrete to improve resisting ability of splitting of concrete ; study on the technology of the highly mixed fly ash to reduce the adiabatic temperature rise of concrete ; in case of the condition of resisting splitting to allow, study on the temperature control measure to strengthen and water the size of building, simplify the operational procedure, accelerate the construction speed, economize the expenses of the project

    溫控問題成為青居水電站設計和施工的關鍵技術問題。 、本文對水工大體積混凝土溫控問題進行了分析和總結，結合青居水電站閘壩工程，開展溫度應力及溫度控制研究:研究混凝土的配合比及特細砂混凝土『改性問題，提高混凝土的抗裂能力;研究高摻粉煤灰技術，降低混凝土的絕熱溫升:在抗裂條件允許的情況下，研究施工過程中溫控措施的簡化，以加大澆築尺寸，簡化施工程序，加快施工進度，節約工程費用。
  3. The results indicate that : only with a few rain gauges to adjust the radar estimated rainfall, authors could simulate the runoff as good as that from rain - gauge - network - measured rainfall ; the accuracy of radar rainfall estimation to heavy rain acts as a more important role than that of light rain ; the estimation error of amount precipitation over a period can be treated as an index for runoff simulation ability

    在1500小時時間序列的比較試驗表明，雷達估測面雨量和雨量計測量的面雨量都能較好地模擬每小時流域出口蔣集的出流量，數值試驗還表明，雷達估測面雨量在某一時段上的均值誤差作為一個指標可以較好地反映其應用於降水徑流模擬時的精度總雨量和強降水的估測精度是雷達估測面雨量能否用於徑流模擬的關鍵。
  4. The validity of auditing lies in its applying advanced concepts and models to recognize the inherent risks and adopt the specific measures accordingly so as to better control risks, inspect risks and reduce the overall auditing risks

    審計有效性的關鍵是運用先進的理念和模式識別出固有風險，然後有的放矢地決定採用何種具體程序，從而才可能更好地把握控制風險、檢查風險以降低整體審計風險。
  5. Baised on tradition technology, the key product procedure were improvd on extractive mine decompose procedure of monazite in alkali, the new technology can resolve the longer tradition craft flow of vapour sequence heating be prone to emit chamfer higher energy consume 、 unstabilize operation low decompose rate, it can lower produce costing 150 yuan / t, decompose rate can be advanced 2 %

    摘要在傳統工藝的基礎上，對獨居石精礦處理的關鍵工序堿分解進行了改進，重點解決了原工藝蒸汽加熱連續分解的工藝流程長、易冒槽、耗能高、不穩定及分解率相對較低的問題，降低噸處理精礦生產成本150元左右，提高分解率2 %左右。
  6. Upon author ' s long distance experience in producing aluminum easy open can, he had studied and researched deeply many kind of easy open cans in the worlds, analyzed the technique of key several production program of can making and solved a series of key technical problems during the process of light - weighting such as, aluminum raw material, can profile design, press technique and mould design etc. after carrying out light - weighting, the used aluminum raw material thickness of easy open can ' s body could be thinned from 0. 325mm to 0. 285mm, the weight of gram per can could be reduced from 13. 625g to 11. 948g, its economic benefit could be more big obviously

    本文在對國內外輕量化技術的應用現狀進行深入分析的基礎上，從技術層面對易拉罐輕量化實施過程中的若干關鍵性問題進行了探討。通過對國內外各種罐型所進行的深入研究，從易拉罐製造過程中關鍵工序的工藝分析入手，解決了輕量化實施過程中罐用材料、罐型設計、沖壓工藝、模具設計等一系列關鍵技術難題。輕量化技術成功實施后，易拉罐罐體所用鋁材厚度從0 . 325mm減少到0 . 285mm ，單罐克重從13 . 625g降低到11 . 948g ，取得了明顯的經濟效益。
  7. Power bond graph is used to established the bond graph model of the lifting and dropping of hydraulic pile hammer and state space equation in the paper for hydraulic pile hammer is perplexing nonlinear system. in order to attain the graph that pressure, position, velocity, acceleration vary with time in the course of driving pile simulation procedure solving state space equation is designed on the basis of combining four - order runge - kutta method with predicator - corrector method, dynamic simulation of the hydraulic system is studied in matlab 6. 5. it is convenient to analyse dynamic characteristics of the hydraulic syste m, beneficial to the design and parameter optimization of the hydraulic system. in the final part of the paper, under detailed analysis of the control characteristics for double - acting hydraulic pile hammer with double cylinders, control system based on the programmable logic controllers founded on technology of modern compute is designed

    由於液壓打樁錘液壓系統是一個復雜的非線性系統，本文採用功率鍵合圖法建立液壓打樁錘上行、下降的鍵合圖模型和狀態空間方程，通過四階龍格?庫塔法和預估?校正法相結合編制了模擬程序對狀態空間方程求解，在matlab6 . 5中進行液壓系統的動態模擬，獲得液壓打樁錘運動過程中壓力、位移、速度、加速度等隨時間變化的曲線圖。此曲線圖方便了對液壓系統動態特性分析，為液壓系統的設計和參數優化提供了有益的借鑒。最後，在深入分析雙缸雙作用液壓打樁錘控制系統的功能要求后，採用了以現代計算機技術為基礎的新型工業控制裝置? plc可編程式控制制器，設計出了雙缸雙作用液壓打樁錘的電器控制系統。
  8. The thesis then introduces top - to - bottom schemes, which discuss the functional design of hdtv test pattern signal generator according to the tasks and platform of the system, and develops the function of subsystems. the thesis analyses the theory and mathematic model of hdtv test signal, and studies the signal generating scheme called single - fpga and multi - prom, and describes in detail its key modules such as configuration connecting, prom routing, control and switch timing design and so on. the single - fpga and multi - prom scheme increases the number of prom to reduce the degree of fpga demanded, thus

    論文分析了hdtv測試信號的原理及數理模型，提出了一種以單晶元多配置為特色的信號生成方案，並對該方案的配置連接、晶元選路、控制切換時序設計等關鍵模塊進行了詳細敘述，該方案以增加配置晶元數量來降低對主晶元要求，不但降低了產品成本，還使各測試信號的代碼編寫和產生相對獨立，有利於合理使用晶元資源，實現多種復雜的hdtv測試信號，縮短開發周期。
  9. The contents of the a - helical and p - turn conformation in the secondary structure of the mp - 11 molecule increase and the content of the random coil conformation decreases due to the coordination of cd2 + with s in the peptide of mp - 11 firstly

    由於cd ~ （ 2 + ）優先與多肽鏈中的s鍵合，引起mp - 11二級結構有規結構含量增加，無序結構含量降低。
  10. Reducing the blindness and disorder and raising the automatization ratio of the reverse engineering is the key to the reengineering neck

    降低逆向工程的盲目性、無序性、即手工作業比例，提高逆向工程自動化率是解決逆向工程這一再工程瓶頸的關鍵。
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