縮口系數 的英文怎麼說

中文拼音 [suōkǒuxìshǔ]
縮口系數 英文
necking coefficient
  • 縮 : 縮構詞成分。
  • 口 : Ⅰ名詞1 （人或動物進飲食的器官; 嘴） mouth 2 （容器通外面的地方） mouth; rim 3 （出入通過的地方） ...
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 系數 : [數學] coefficient; ratio; modulus; quotient; factor
  1. The system realizes multiple serial port communication and management by way of multi - port serial board ( 2 ) use the database technology to manage and manipulate the physics information data of nc tool. the basic information management system, the nc program auto - create system, the simulation of cutter working and dnc communication program are integrated to one system. it realizes the offline programming and controls of no - punched tape, helps to cut short the supplementary cutting time and improves the efficiency of to program and machine tools and realizes the separation and seamless connection of program and manufacture

    本課題以硬體為輔助手段，以軟體為主要手段實現了以下功能：以串口擴展卡來實現網路中多臺數控機床的通信和管理；使用數據庫技術對數控機床的物理信息進行管理和操作，將數控機床基礎信息管理系統、 nc程序自動生成模塊、刀具加工軌跡模擬模塊和dnc通信介面模塊集成為一體，實現了數控加工的離線編程和數控系統的無帶控制，提高了編程效率、質量，縮短加工輔助時間，提高了機床的效率，既實現了編程和加工的分離，又達到它們之間的無縫連接。
  2. The research showed that basin is the more important feeding resource than runner in runner type gating system in lost wax casting. therefore, on the basis of the basin as feeding resource, runner and ingate as feeding channel, a new design method for runner type pouring and feeding system in investment casting was developed. the corresponding feeding mathematical pattern and allowable total weight listed for casting cluster with different basin were established after analyzing the practical feeding of basin and the calculating process for design was described in detail

    在熔模鑄造橫澆道型澆注系統中，澆口杯是比橫澆道更為重要的補縮源，因此在立足於澆口杯為補縮源、橫澆道和內澆道為澆注補縮通道的基礎上，開發了適用於熔模鑄造橫澆道型澆注補縮系統設計的新設計方法，在詳細分析了澆口杯的實際補縮情況后，建立了相應的數學補縮模式和不同澆口杯的鑄件組許用鑄件總質量表，並具體介紹了設計計算過程。
  3. This essay stems from the problem with which tianjin port is confronted, contributes to the research method and theory on how to allocate equipment in order to optimize the efficiency of the loading and unloading assembly line. up to now, there is no a ripe method on that above. so, this paper applies optimum method and economics theory, attempts to set up a series of analyzing methods and optimum models to improve the efficiency of dock loading and unloading, and reduce the operating costs, and increases more profits

    本論文從天津港生產中的現實問題出發，結合發達國家港口設備管理的經驗與中國港口的實際，通過對港口裝卸作業系統地分析，逐步縮小系統的研究范圍，確定提高某一碼頭作業線的機械裝卸效率為研究目的，建立一個作業線合理選擇工藝流程和配機的數學模型，並提出相應的解法。
  4. For the real time performance need of the low speed speech compress algorithm and the asic implement of the transfer process between programs, the design is put forward in the paper, in which state registers control the cross access between operator and memory, register windows are used for the parameters transfer, and the technique of hardware controlling is used to avoid pipeline conflict, so that the main problems of the transfer process in tr600 are solved effectively

    摘要針對低速率語音壓縮演算法對處理器系統實時處理復雜運算的性能要求，就程序調用過程的asic實現問題進行了對比與分析，進而提出了用層次狀態寄存器控制存取運算元對存儲體交叉訪問的方法，並結合運用寄存器窗口傳遞參數的功能，以及利用空指令硬布線處理流水線沖突的方法，有效地解決了tr600晶元中調用過程存在的主要問題。
  5. This paper presents an investigation on a new type of rubber damper, that is, a rubber damper with honeycomb structure. the honeycomb structure will enhance the energy dissipation of a rubber damper and as a result increase the damping of the damper. the performances of honeycomb dampers are experimentally tested by a test rig. the results show that the diameter and the density of holes of the honeycomb structure are important parameters in the design of the damper. for a damper of given size, there are optimum values of both parameters with which the damper provides highest damping. additionally the honeycomb structure does not change the correlation of damping to frequency. a practical honeycomb damper is designe d and applied to inlet pipe of a screw compressor in a petroleum factory for vibration reduction. the vibration of the pipe is obviously suppressed by the damper, at least 25 %

    本文採用理論分析和實驗相結合的方法，研究了蜂窩孔這種結構因素對橡膠阻尼材料阻尼性能的影響。在自行設計、製作的懸臂式阻尼測試實驗裝置上，對蜂窩式橡膠阻尼器的阻尼性能進行了大量的實驗測試，初步找出了蜂窩孔孔徑、孔數以及預壓縮量等因素與阻尼器阻尼性能的關系。本文利用實驗研究的結論，設計了一種專用的蜂窩式橡膠阻尼器，並應用於某廠螺桿壓縮機進口管道的減振，取得了明顯的減振效果。
  6. The method of optimization is the complex method. the objective function is the opration expenses of the hydrogen system. there were six decisive variables : the pressure and temperature of the high - pressure separator of vrds, gas ration to the prism unit from vrds unit and ssot unit, the pressure of the high - pressure separator of ssot and the entrance pressure of the cycle hydrogen compressor

    優化問題以氫氣系統的運行費用函數作為目標函數，選擇了6個決策變量，分別為： vrds高壓分離器壓力、溫度、 vrds和ssot裝置排入prism的氫氣量、 ssot高壓分離器壓力和循環氫壓縮機入口壓力。
  7. With a combination of the design principles and characteristics of pdsn, a method for compressing data packet using mppc compressing algorithm is put forward. after studying ppp protocol and mppc compressing standards, an algorithm using packet matching sliding window buffer to code and decode is provided. considering not making a great change of current pdsn system, a mppc compressing module is designed and the function to compress data packet through vxworks platform is implemented

    作者首先闡述了pdsn系統的工作原理和系統結構，對移動用戶與pdsn之間的數據傳輸進行了分析，並結合pdsn系統的設計原理和特點採用mppc壓縮演算法對數據報文內容進行壓縮;然後闡述了ppp （ pointtopointprotocol :點對點協議）協議和mppc壓縮標準，採用報文匹配的滑動窗口機制進行編碼和解碼;接著考慮在不對現有pdsn系統進行大改動的基礎上，設計了mppc壓縮模塊，並基於vxworks系統平臺實現了對數據報文內容壓縮的功能;最後對壓縮功能進行了測試並給出測試數據。
  8. It ’ s a 16 / 32bits risc cpu based on arm920t ip core, which is highly integrated and powerful. this cpu has a lot of peripheral interfaces and i / o ports, which will facilitate our system design. the asic ime6400 is a system level chip which supports the multi - channel mepg4 video / audio compression. in our design, it ’ s served as an video compression oriented co - processor working under the control of s3c2410x. s3c2410x will do the job of importing the other vehicle traveling data such as analog and switch signals

    在筆者設計的系統中， ime6400作為專門進行數字視頻信號壓縮的協處理器，與s3c2410x協同工作，完成視頻信號的獲取，壓縮等工作;同時利用晶元的片內外設（如ad轉換器和i / o口） ，完成汽車行駛過程中開關量和模擬量的獲取和存儲，以滿足一個記錄儀的基本功能需求。
  9. In the paper, interrelated background and working principle of the quasi two - stage compression heat pump system coupled with ejector are introduced in detail firstly. working process of ejector and scroll compressor with supplementary inlet are analysed mainly and the mathematic model of the system is set up

    本文首先對與準二級壓縮?噴射復合熱泵系統的相關背景進行了綜合闡述，並對該系統進行詳細介紹，重點對系統中的噴射器和帶輔助補氣口的渦旋壓縮機的工作過程進行分析並建立數學模型。
  10. On the basis mentioned above, another mathematical model for the supercharged diesel was set up. according to this model some results of simulation calculations were given. the characteristics of operation of the diesel in wet compression : including the excess air coefficient, the cylinder temperature at the beginning of compression stroke, the maximum temperature in the cylinder, the cylinder thermal load, the specific fuel consumption, and efficiency of diesel engine were obtained

    在此基礎上，又建立了增壓柴油機濕壓縮的數學模型，對噴水后柴油機的各性能參數，諸如過量空氣系數、氣缸進氣溫度，缸內最高溫度、氣缸熱負荷、比油耗、熱效率等進行了模擬計算，為增壓柴油機進口加濕技術的研究提供了理論依據。
  11. This controlling way can make the passengers feel much comfortable and make the bus air - conditions work with a high efficiency. in this thesis, a single - chip microcomputer fuzzy controlling system with mcu : at89c51 is designed to deal with the bus whole air - condition composed with refrigerating system and heating system. via controlling the open of temperature door, turnaround speed of evaporator fan and subsidiary engine, it can control temperature of railway carriage

    本論文針對獨立式全空調型（完全合一型）客車空調系統，設計了一個以at89c51為核心的採用模糊控制演算法的嵌入式單片機控制系統，通過控制溫度門的開口角度、蒸發器風扇的轉速、輔助發動機的轉速來控制車廂內的溫度，通過壓縮機的開、停對蒸發器除霜，系統具有溫度顯示、用戶設定的分擋多級溫度控制、在線控制參數修改等功能。
  12. Thirdly, the hardware platform of the video analysis system was detailed, and the system ’ s whole structure 、 video decoder 、 network control module and uarat control module were gone deep into one by one. finally, the software design of video analysis was deeply discussed. and the emphases were put on four aspects : one was the conversion from serial to parallel and other was the conversion between luminance and chroma, another was the method of video analysis, and the last one was the network compression technique of video stream

    本文首先介紹了課題背景、研究現狀及研究內容;然後敘述了ti的dsp功能、特性及應用技術;接著詳細闡述了基於dm642的視頻分析系統硬體設計，深入研究了視頻分析系統的體系結構、視頻解碼模塊、網路控制模塊和串口控制模塊;最後充分討論了基於dm642的視頻分析系統軟體設計，重點探討了視頻數據的串並轉換方法、色度空間轉換方法、視頻分析方法和網路視頻壓縮方法等。
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