電鰭 的英文怎麼說
中文拼音 [diànqí]
電鰭
英文
electric ray-
The theory of wilkinson power combiner and ratrace coupler is analyzed by using the odd - even mode method in this thesis. on the basis of the theoretical analysis, we designed and tested the wilkinson power divider, the modified wilkinson power divider and ratrace coupler, good agreement is observed. in addition we propose a power combiner based on a waveguide - to - microstrip transition using antipodal finlines. this structure united the two functions of transition and equal power division, it can not only be used in the circuit power combiner but also be used in spatial power combiner
另外提出一種基於鰭線波導微帶過渡功分器,該結構將過渡與功分兩種功能完全結合,不但可以用於電路合成式功率合成,也可用於空間功率合成中。對功率合成器,其主要指標是輸出功率和效率,其中提高輸出功率和效率的一個方法是在輸出端抑制諧波,主要是對二次諧波的抑制。Through the fundamental academic research of tunny ’ s swimming mode, the single motor - driven - robot fish has been designed, which has two joints taking pectoral fins as an elevator to make the fish - like robot moving up and down, moreover it can achieve the inertia swerve and the static swerve
通過對?科加新月形尾鰭推進模式魚類的仿生學研究,設計了單電機驅動兩關節聯動的尾鰭推進仿生金槍魚,以胸鰭作為升降舵實現機器魚的上浮和下潛,還可實現慣性前進轉彎和靜止轉彎。It receives static and dynamic performances of fin stabilizer, which can prove that the methods advanced in this dissertation is effective for improving the comprehensive control performances of the electr o - hydraulic load simulator
通過實驗得出減搖鰭電液負載模擬臺的動靜態性能指標,證明本文提出的提高減搖鰭電液負載模擬臺綜合控制性能方法是有效的。The total system of linearly tapered fin - fed slot antenna, which is made up of radome, lwsa and the feed structure, was optimized by commercial software ansoft hfss
除了線性槽天線的設計以外,饋電結構的設計對于整個天線系統來說也是很關鍵的,鰭線和波導的匹配好壞也決定了整個天線系統性能。The approaches used in the study included : observing the microstructure and ultrastructure of the cell line of colossoma brachypomum ( cbt ) and the cell line of carp ( cp ) stressed low temperatures under fluoroscopy and tem ; analysis of dna damage in the cultured cells under temperatures stress by dna gel electrophoresis
本研究採用的主要實驗方法:通過熒光顯微觀察、電鏡超微結構觀察確定cbt (淡水白鯧臀鰭細胞)和cp (草魚胚胎細胞)在低溫處理后的顯微與超微結構的變化。應用dna電泳分析細胞dna在低溫處理后的斷裂現象。Diesel engine, main turbine, generator turbine, main boiler, diesel generators, deck crane, deck machineries, propeller, controllable pitch propeller, switchboard, engine control console, fire extinguishing system, inert gas system, aux. boiler, oil purifier, navigation equipment, life boat, anti rolling system, hatch cover, compressor, fin stabilizers, valves, anchor, chain and scaffolding, control system for lng carrier and various machinery for lng carrier
主機柴油機,液化氣船主機透平鍋爐貨油泵,機艙泵,發電機,甲板吊機,甲板機械,螺施槳, cpp ,配電盤,主機遙控,消防沒備, igs ,輔鍋爐,分油機,航海儀器,救身艇,減搖裝置,艙口蓋,空壓機,減搖鰭,閥門,錨,錨鏈,船舶腳手架,液化氣船控制系統,液化氣船用各種沒備The antenna investigated in the dissertation is the unilateral slot antenna with fed taper and end taper, which is fed by fin - line
最後藉助於三維高頻電磁場模擬軟體ansofthfss ,對整個鰭線饋電線性漸變天線系統進行了優化。The electro - hydraulic load simulator of fin stabilizer is physical half - objective simulative system. its function is to simulate, under laboratory conditions, different kinds of hydrodynamic force exerted on the fin stabilizer so as to detect technical performance index of the driving system of fin stabilizer. thus the classical self - destructing all - objective experiment will be converted to half - objective forecasting experiment in laboratory to achieve the aims such as shortening lead time, saving developing funds, enhancing reliability and success proportion
減搖鰭電液負載模擬臺是一種半實物物理模擬系統,其功能是在實驗室的條件下,模擬船舶航行過程中減搖鰭所受的海浪水動力載荷譜,從而檢測減搖鰭驅動系統的技術性能指標,將經典的自破壞全實物實驗轉化為在實驗室條件下的半實物預測性實驗,以達到縮短研製周期、節約研製經費、提高可靠性和成功率的目的。This kind of switch use the unilateral fin - line as the basic transmission line, the beam lead pin diode of alpha co. ltd is the control element, there is two diodes in each channel and they are welded in circuit in parallel connection
本課題主要研究的是毫米波鰭線pin管單刀雙擲開關。該開關採用單側鰭線作為基本傳輸線,控制器件選用alpha公司的梁式引線pin二極體,每路使用兩只,採用並聯形式焊接在電路中。This thesis mainly analyze the structure of switch the circuit ' s form and some of manufacturing technic. under the given frequency band, the switch has flat capability of insert loss and isolation, and can satisfy the need of millimeter - wave system
本課題主要對開關的結構、電路形式及製作工藝等方面進行了一定的分析,使得毫米波鰭線pin管開關在給定頻率范圍內,具有平坦的插入衰減和隔離度特性,滿足毫米波系統的需要。The dissertation mainly researches the ka band single pole triple throw switches. two kinds of pin switches are discussed in theory, simulation and experiment, the simulation results and test results are all included
對pin開關的理論,分析方法,模型的建立以及實際電路的製作等方面進行了一定的研究,實際製作了微帶、鰭線兩種單刀三擲pin開關。The experimental system is build up in this dissertation, by which we proceed the experimental research aiming at two structure schemes which are electro - hydraulic load simulator controlled by single pressure servo valve control and loading platform controlled by pressure and flow servo valves separately
本文建立了減搖鰭電液負載模擬臺的實驗系統,並分別在單個壓力伺服閥控制加載系統、壓力伺服閥和流量伺服閥雙閥控制加載實驗系統進行了實驗研究。The theory and design of the balanced converter, fin - line waveguide bandpass filter, waveguide to microstrip transition and millimeter - wave amplifier are studied in this paper. finally the paper presents the structure and the simulated result of each module
本文對組件中的平衡上變頻器,鰭線波導帶通濾波器,波導微帶轉換結構以及毫米波信號放大器的原理和設計進行了討論,並給出了電路結構,模擬結果。Driving elements of fin stabilizer are designed and the simulation about characteristics of surplus force, loading system with or without disturbance, static or dynamic state is done. the relationship between the dynamic characteristics of servo valve and loading system " s control performance, loading gradient and loading system " s control performance is analyzed
設計了減搖鰭電液負載模擬臺動力元件,利用相關軟體對加載系統多餘力特性、有擾及無擾特性、動態及靜態特性等控制性能進行了模擬分析,並分析了加載梯度、伺服閥動態特性與加載系統控制性能之間的關系。分享友人