轉發器范圍 的英文怎麼說

中文拼音 [zhuǎnfànwéi]
轉發器范圍 英文
repeater range
  • : 轉構詞成分。
  • : 名詞(頭發) hair
  • : 名詞1. (器具) implement; utensil; ware 2. (器官) organ 3. (度量; 才能) capacity; talent 4. (姓氏) a surname
  • : 名詞1 [書面語] (模子) pattern; mould; matrix 2 (模範; 榜樣) model; example 3 (范圍) boundar...
  • : Ⅰ動詞1 (四周攔擋起來 使裡外不通; 環繞) enclose; surround; corral 2 (繞; 裹) wrap Ⅱ名詞1 (四...
  • 轉發 : retransmission; transmit; repeat; relay
  • 范圍 : scope; limits; extent; boundary; confines; range; range dimension; spectrum
  1. ( 8 ) by studying match between the electronic system and catalytic converter on the base of electronic controlled bypassing air system, conclusions having been gotten as follows : higher conversion efficiency of emission have gotten when a / f fluctuates at definite scope and frequency, by controlling the comparing voltage of 02 sensor, the working scope of catalytic converter can be controlled and the matching that can fulfill the high efficiency of hc, co, nox at same time has been optimized

    ( 8 )進行基於所開的電控補氣系統上的催化與電控系統的匹配研究,當控制系統調節空燃比在一定按照一定頻率進行波動時,可以提高催化化效率;通過控制氧傳感的比較電壓,可以控制催化的工作窗口,實現排放污染物中, hc 、 co 、 nox化的最優匹配。
  2. A data acquisition system with the following features is realized : ? transmission rate up to 100kbyte / s over usb ; ? system ' s dynamic range as high as 120 db ; ? multi - kind of trigger mode control ; ? sampling rate as high as 100 ksps ; ? 12 - bit a / d conversion accuracy ; ? 32k bytes on - board data memory ; ? the system, which was made up of large - scale electronic chips, is small, light and portable, and suitable for field use

    本設計最終實現了一個瞬態信號數據採集系統,它具有以下特點: ?採用usb介面進行高速數據傳輸,傳輸速度達100kbyte / s ; ?採用浮點a / d換技術,動態達120db ; ?多種采樣觸控制方式; ?最高采樣率100ksps ; ? 12位采樣精度: ? 32kb數據緩存; ?使用新型大規模電子件,系統結構緊湊,重量輕,適合野外作業。
  3. According to the guidline, two nd : yag lasers have been designed and set up, one is end - pumped by lower output power ld using a selfoc micro lens, and the other is end - pumped by high output power ld using a pair of lenses are designed, and the characteristics such as output power and power stabilization of both solid - state lasers are investigated. thirdly, when an empty liquid crystal cell is inserted in the cavity of the nd : yag laser pumped by high power ld, the laser can operates in single axial mode. finally, according to the relationship between the laser output power and the longnitudinal a ld - end - pumped nd : yag laser sensor for displacement measurement has been investigated theoretically and demonstrated experimently, the results indicate that when the mean radius of pumping inside the laser cavity is far less than that of the oscilating laser mode, the exponential of the output power is a gauss function of the longitudinal positon of focused spot of ld pumping beam, both the measurement range and the sensitivity are dependent on the incident pumping power, as the incident pumping power is increased, the measurement range is enlarged and the sensitivity is improve d

    本文首先介紹了ld泵浦nd : yag激光展狀況、主要特性及其應用,從四能級速率方程出,推導了ld泵浦nd : yag激光的閾值、輸出功率和斜效率的表達式,並簡述了激光的工作原理、結構型式和倍頻方法;其次,以空間相關的速率方程為基礎,提出了ld端面泵浦nd : yag激光的設計方法,給出了一定泵浦耦合方式下,振蕩光模尺寸、最佳輸出耦合率、泵浦光模尺寸、泵浦光焦斑位置等參數的選取依據,以此為依據,設計了自聚焦透鏡耦合小功率ld泵浦nd : yag激光和透鏡組耦合高功率ld泵浦nd : yag激光,對激光的輸出功率和功率穩定性等特性進行了實驗研究;再次,在帶尾纖輸出的高功率ld泵浦nd : yag激光腔內插入一隻空液晶盒,觀察到了激光以單縱模運;最後,根據泵浦光焦斑端面位置對激光輸出功率的影響規律,提出了ld端面泵浦nd : yag激光位移傳感新方法,並進行了理論和實驗研究,研究結果表明:當激光晶體內泵浦光平均光斑半徑遠小於振西安理工大學碩士學位論文蕩光束腰半徑時,激光輸出功率的自然指數與泵浦光焦斑的縱向位置成高斯變化規律,測量和靈敏度依賴于泵浦功率,隨著泵浦功率的增加,測量擴大,靈敏度提高,當端面泵浦功率為7 . 24w (最大輸出功率為1 . 926w )時,激光位移傳感的測量和靈敏度分別是13 . 045mm和0 . 148mw / pm 。
  4. Besides, scan rate and cycle period also affect the result ; co - deposition of dualistic oxide is a focus of research, as an element in the same group, ir is selected. deposition rate of composition is decreased by the adding of ir composition, and when the proportion of ir exceeded 50 %, composition procession can be ceased. but cooperation of ir and ru oxide can highly increase the specific capacitance of active material ; annealing treatment under a certain temperature can help to change the hydrate ru composition into mixture state ru oxide, accordingly increase the stabilization of active material

    研究表明:電解液的配製過程中,氯化釕濃度、溶液ph值、陳化時間、溶液溫度對電鍍效果均有影響,其中溶液ph值是最主要的影響因素;在儀的使用條件探索中,理論結合實驗確定了本電鍍液體系循環伏安電勢窗的理想,並現循環伏安掃描速度和掃描周期對電鍍結果也有較大影響;混合氧化物的共沉澱是目前研究熱點,在此選用與釕同一族的銥作為共沉澱元素,銥的加入會阻礙氧化物的沉積速度,銥的比例超過50 %會使沉積作用停止,但是二元氧化物的協同作用使沉積的活性物質比容量大大提高;一定溫度下退火后處理作用會使水合釕化物變成混合價態的氧化釕,從而提高活性物質的穩定性。
  5. This text completely and systematically studies the status and the development of the pyrolysis and the fluidization of biomass, which distill the bio - oil in the domestic and international area, as well as the existing problems. this thesis primarily include following aspects : ( l ), by experimenting and measuring the energy ( heat value ) and the content of c, h, n chemical element of right 20 kinds of common biomass, on the base of the experimental result, and respectively established the biomass energy predict experiment formula with the element of h and c is from change, and passed the ro. os examination, which provides the basis and convenience for flash pyrolysis fluidization device energy to convert the rate to compute with biomass energy utilization calculation ; ( 2 ), proceeded the tg and dtg experimentation equal velocity ( 10 ? / min, 20 ? / min, 40 ? / min, 60 ? / min ) heating and constant temperature heating by studying on eight kinds of biomass samples, according to the experimental data and arrhenius formula, we established the dynamics model of pyrolysis of, then, using the goast - redfern and p function, we also solved the dynamics parameters and analyze out every kind of biomass ' s frequency factor and parameters of activation energy, and established the every kind of dynamics model of pyrolysis of biomass, all of these provide the theories and basis to make sure the reactor ' s flash pyrolysis work temperature scope design and the describing of pyrolysis reactor dynamics ; ( 3 ), in order to study and ascertain the process of heat completely getting to pyrolysis time of varied size biomass particles, we observed and measured the ratio of length and diameter ( l / d ) with the varied biomass through electron microscope, we concluded the l / d ratios usually is from 5. 0 to 6. 0, the average is 5. 3 ; ( 4 ), we studied the process of biomass transiting and the theory of complete pyrolysis time with the theory of complicated heat field, we got the time ( t ) of the varied size biomass particles arriving to complete pyrolysis, and we knew that the complete pyrolysis time and the time which get to the biggest production ratio are identical, all of these studies provide the theory base for design and forecasting the flash pyrolysis reactor solid state resort time ; ( 5 ), according to the above experiment result, synthesize to make use of the engineering the mechanics, engineering the material, machine the design to learn the principle, deduce, establish the theory of rotation cone flash pyrolysis reactor material resort time ( t ) and reasonable rotation velocity ( or frequency ) relation theory ; and ( 6 ), we gave the reactor ' s smallest cone angle certain, reactor cone wall strength design theory, the reactor production ability theory, the power design method and the critical rotation velocity theory

    本文較全面、系統地綜述了國內外生物質熱解液化制取生物燃油技術研究展現狀及存在的問題,主要研究內容有: ( 1 )實驗、測定了20種常見生物質的能量(熱量)和c 、 h 、 n元素含量,根據實驗結果分別建立了以h和c為自變量的生物質能量預測經驗公式,並通過r _ ( 0 . 05 )檢驗;為閃速熱解液化裝置能量化率計算和生物質能量利用率計算提供了依據和方便; ( 2 )選擇了8種生物質試樣作了等加熱速率( 10 min 、 20 min 、 40 min 、 60 min )和恆溫加熱的tg和dtg實驗,根據實驗數據和阿倫尼烏斯公式建立了生物質熱解反應動力學微分方程,並採用goast - redfem積分法和p函數對其動力學參數進行了求解,解析出各種生物質的頻率因子和活化能參數,進而建立了各種生物質的熱解動力學模型,為科學確定反應的閃速熱解工作溫度及熱解反應動力學描述,提供了理論和依據; ( 3 )為研究和確定不同尺度的生物質顆粒中心達到全熱解的時間,在體視顯微鏡下對不同粒度的生物質顆粒的長徑比進行了實驗觀察和測定,得出生物質的長徑比( l d )一般在5 . 0 6 . 0之間,平均為5 . 3的結果; ( 4 )採用復雜溫度場傳熱學理論對生物質傳熱過程及充分熱解時間理論進行了研究,解析推導出了不同尺寸生物質顆粒中心溫度達到充分熱解溫度的時間( t ) ,得出了理論推導的充分熱解時間與最大產油率的熱解時間相一致的結果,為閃速熱解反應固相滯留時間設計和預測提供了理論依據; ( 5 )根據上述實驗結果,綜合運用工程力學、工程材料、機械設計學原理,推導、建立了錐式閃速熱解反應物料滯留時間( )與速(或頻率)合理匹配理論; ( 6 )提出了錐式閃速熱解反應的最小錐角設計、錐壁強度設計、生產能力設計理論和功率計算方法及臨界速理論等。
  6. Considering the limited energy and transmission range of sensor nodes in sensor networks, an innovative routing algorithm named self - adaptive flooding based on delay is proposed. in this algorithm, sources deliver route request packets ( rreq ) and sink answers route reply packets ( rrep ) to build routes. in order not to miss optimum routes with the best metrics, the algorithm is to wait a specific amount of time to ensure that almost the rreq near the best metrics is received

    為此本文在無線傳感網路中研究了基於自適應的路由演算法,主要工作如下:針對傳感節點能量及傳輸有限等特點,提出了一種基於延遲的自適應洪泛路由演算法,首先通過源節點在網內用較小的路由請求報文和路由回復報文來建立路由,路由建立的過程中自適應地確定等待時間以使更優的路由請求報文得到,然後源節點再沿著建立好的路徑較大的數據報文。
  7. The enterprise baoji xingtong electronic communication co., ltd. deal in transponder

    提供應答、脈沖轉發器范圍內的傑出產品。
  8. Advanced fpga technology is introduced to improve the integration of digital circuits, and all digital circuits in the original module are integrated in the fpga chips, which could not only reduce the cost, but also improve the reliability and measurement precision of the circuits. high speed digital signal processor ( dsp ) is selected as the coprocessor instead of scm ; it can receive all kinds of commands sent from vxi, analyze and execute the commands, harmonize each section of the module and process the data. higher - conversion - speed comparator chip is adopted to convert the input signals being measured into square waveform signals which could be identified by fpga chip ; it can expand the measurement range of frequency dramatically

    本文在原有vxi總線四通道計數模塊的設計基礎上,通過對原模塊缺陷的分析,採用一些新的技術和新的電子件來重新設計該計數模塊:採用最新的fpga技術來提高數字電路的集成度,將原模塊中的所有數字電路全部集成在fpga晶元中,這樣不僅能節約成本,還能提高電路的可靠性和測量精度;採用高速的數字信號處理( dsp )取代原有的單片機作為協處理,來接收vxi來的各種命令,分析命令、執行命令、協調模塊各部分的工作以及對數據的處理;採用換速率更高的比較晶元將輸入的被測信號換為fpga晶元能夠識別的方波信號,能極大提高測量頻率的;採用d / a換晶元和隔離運算放大得到隔離通道所需的比較電平,該比較電平值能夠根據實際需求進行設置,能增強模塊的使用靈活性。
  9. Ganfa has over 50 years experience of designing and manufacturing and has many items of patent techninque. the synchronous generators and permanent magnet generators which are manufactured with advanced technology and excellent machining equipement, will be able to meet the requirement of different technical condition which matched with various type turbines. ganfa has manufactured the generators of 0. 1 to 20mw in capacity which have been put into operation at present and owns the capability to manufacture the following generators : the capacity per unit up to 180mw, the stator outer diameter of generator up to 9, 000mm, the speed of vertical type generator up to 750r min, and thespeed of horizontal type generator up to 1, 500r min, both the b - grade and f - grade insulation class, the terminal voltage can up to 13. 8kv. ganfa manufactured 34, 500kw water turbine generator sets for the donghewan power station, yongchang, gansu, china which is located in 2. 868. 5m height above sea level, and has successfully solved the difficult problems such as plateau corona - shielding. ganfa is equipped with the generator test station and insulation material laboratory which are advanced test facilites and testing means to make each item electrical performance of products meet designing requirements from purchasing to delivering

    公司具有50年的設計製造經驗,擁有多項專利技術,生產的同步電機永磁機技術工藝先進,製造精良,能滿足與各式水輪機配套的不同技術條件要求。目前公司已製造投產的電機容量為0 . 120mw ,具備生產單擊容量50mw的能力,電機機座號最大可達9000mm ,立式機最高速750r min ,臥式機最高速達1500r min ,絕緣等級有b級和f級,圈式線圈最高電壓達13 . 8kv ,公司製造的甘肅永昌東河水電站34500kw水輪電機組,海拔為2868 . 5m ,成功解決了高原防暈等難題。公司擁有電機試驗站絕緣材料試驗室等先進的實驗室設施和測試手段,使產品從原材料進產,到成品出產的各項電性能測試均能滿足設計要求。
  10. This is typically caused by a router forwarding a packet using an interface that is outside the scope of the source address

    這通常是由於路由使用了源地址以外的介面數據包所導致的。
  11. The economic success of kozesnictvi - milena cerna is coined / shaped by products and service services such as clothes, coats, france in addition to germany, manufacture and artificial. one can even receive offers on sale, rabbit, sheep and leather as well as on leather clothing with kozesnictvi - milena cerna in outstanding quality

    是一家高效的工業型企業,企業生產法國,旋緊螺栓,行、交、供應,電抗,產品、製品,龍頭、旋塞,整流、整流管、閥、閥門,部分、片段,快的、迅速的,賣、出售,軟管、套管,工業機械裝置,空氣內高水平的產品。
  12. Current transformers are nonreplaceable in the field of protection and measurement for decades, but the electromagnetic current transformers can not meet the development of the electric power system for the reasons of magnetic saturation, ferro resonance, little dynamic range, narrow service band and so on 。 with the popularization of microcompute, it will be irreversible to apply microcompute in the protection and measurement, the equipments do not need the current transformer with high power, so the rogowski coil can apply on the field of protection and measurement

    電流互感在繼電保護和電流測量中的作用長期以來具有不可替代的地位,但電磁式電流互感所固有的磁飽和、鐵磁諧振、動態小、使用頻帶窄等都難以滿足電力系統展的要求。隨著微機的普及,在繼電保護和測量中應用微機已是不可逆的潮流,設備已不再需要高功率輸出的電流互感,因此可以選用rogowski線圈作為低電壓輸出要求的電流測量和繼電保護應用。
  13. The operation of ccm in ge - xian - mi served as a means of diminishin g photodynamic damage by dissipating excess light energy and higher external dic in the range of 100 - 10000 umol - l - 1 khco3 was associated with more severe photoinhibition under strong irradiance

    葛仙米ccm的運能夠耗散過剩激能,保護光合官免受損篡碩士學位論文master 』 5tl王esis傷。在100一10000娜ol . l一, khco3內,隨著胞外dlc濃度升高,強光引起的光抑制加劇。
  14. The transponders on board the satellite may be used to provide telecommunications and broadcasting coverage across the asia region

    衛星上的可用作提供電訊及廣播服務,覆蓋遍及亞洲。
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