直上干線 的英文怎麼說
中文拼音 [zhíshànggānxiàn]
直上干線
英文
rising main-
The button electrode is one that widely used in high energy rf accelerators, such as storage ring, and the bpm made of button electrodes has many merits like high accuracy, high resolution, resisting magnetic field, simple machinery, without magnetic core and low cost, etc. so we want to use the button electrode as the bpm in high current accelerators like the lia
鈕扣電極束位置探測器是一種廣泛應用於射頻加速器儲存環等高能弱流加速器的一種束位置測量裝置，它具有測量精度高、解析度高、不受磁場干擾、機械結構簡單、無磁芯、造價低廉等特點。只是，至今未見有關這種束位置探測器在強流加速器（如，直線感應加速器）上應用的報導，如能將鈕扣電極束位置探測器應用於lia ，將是一件很有意義的事情。Due to the short distance among the planes which fly in a group, the conventional low resolution radar can not distinguish them in both distance and azimuth ? if we use the technology of isar to resolve the difference among doppler frequency of the targets and obtain a fine resolution cross - cross image, we may separate them, but a long time of coherent processing is needed <, for the formation targets, it can be approximately divided to rigid body and nonrigid body, so for the formation targets, that can be regarded as rigid which has a relative position and an identical movement, can be approximately considered as a large target, and be compensated by translational phase with the rule of minimum entropy, but for the most those cannot accord with the approximation of rigid, being the doppler - frequency of the aim is linear changed, by the relax method with short data, increases the resolving performance of multiple target to the aim in the frequency domain, since cross - range resolution is based on the accumulative time, so it is greatly improve the resolution to formation targets by the instant cross - range image which produced by radon - wigner transformation
低分辨isan成像及干涉技術應用研究一因此直接無法分辨編隊目標的架數，我們借鑒isar的技術，通過較長時間的相干積累，在多普勒頻域上對目標進行分辨。而對于編隊目標，可分為近似剛性的多目標和非剛性的多目標，所以對于可以近似為剛體的編隊目標相對位置固定，運動方式一致，可以近似看作一個大目標，採用最小墑準則對平動相位的進行補償，但是大多數並不滿足剛體近似的編隊目標，由於目標在相干積累時間的多普勒頻率近似呈線性變化，通過對較短數據利用relax的時頻分析方法，提高了頻率域上目標分辨的性能。由於橫向解析度取塊于橫向積累時間，所以利用radnwigner變換得到瞬時的一維橫向距離像大大提高了對編隊目標的分辨，對模擬和實測數據的大量分析結果表明此方法的有效性和可行。An individual standing inside the balustrade in the space left clear round the marble table, and whom up till now no one had noticed, so effectually was his tall and spare figure concealed from view by the thickness of the pillar against which he leaned ? this person, thin, sallow, light - haired, young still, though furrowed of brow and cheek, with gleaming eye and smiling mouth, clad in black serge threadbare and shiny with age, now approached the marble table and signed to the wretched victim
此人一直站在欄桿里邊，大理石桌子周圍的空檔里，誰都沒有瞅見他，因為他又長又瘦的身子靠在圓柱上，柱子的直徑完全擋住任何人的視線；此人高挑個兒，消瘦干癟，臉色蒼白，頭發金黃，額頭和腮幫上都有了皺紋，卻還很年輕，目光炯炯，滿臉笑容，身上穿的黑嗶嘰衣服舊得都磨破了，磨光了。This paper mainly focuses on the noise limiting by means of the direct sequence spread spectrum ( dsss ) and the analysis of the transmission performance of the plc and some digital modulation technology. the contents of the paper is as follows : 1 ) the technical feasibility is proved after simulating noise limiting principle of dsss by means of systemview, the simulation software ; 2 ) a kind of band pass filter ( bpf ) is realized according to the requirement of filter and the principle of butterworth approximation, which satisfies the index of performance of dsss. 3 ) the low voltage plc system includes the sc1128, the specific modulation / demodulation ic, the bpf filter and other circuit components, furthermore, the control function of system is realized by means of the personal computer and the microcontroller
本課題在對低壓電力線的傳輸特性和數字調制技術進行分析的基礎上，將通信理論中的直接序列擴頻技術（ dsss ）用於解決低壓電力線通信的干擾問題，主要研究內容如下： （ 1 ）用通信模擬軟體systemview對dsss技術的通信和抗干擾原理進行模擬分析，分別對時域和頻域下採用dsss技術前後接收信號的頻譜進行分析，驗證dsss技術在本系統中的可行性； （ 2 ）由dsss技術對濾波系統的要求，根據濾波理論分析了巴特沃思型濾波器的逼近原理並設計了合適的濾波電路； （ 3 ）用調制解調晶元sc1128和自行設計的濾波器加之輔助外圍電路，構造出低壓電力線載波通信系統，並採用atmel公司的單片機設計了接收和發射電路的微控制器； （ 4 ）分別對採取抗干擾措施前後輸入和輸出信號進行對比實驗，並對結果進行分析，驗證了dsss技術對干擾信號的抑制作用。The function of the software use pc - computer to dispose the output signal which is produced by the device as following steps : ( 1 ) to input data by parallel interface ( 2 ) to record and form a file ( 3 ) to demonstrate results step by step ( 4 ) the results could be compiled ( 5 ) it can synthesis in the permitted error scope, substituted original dot for line or arc, finally we could get a graph that is described by some simply curve. ( 6 ) to convert these graph into a program, which used in the cutting process of numerical control. ( 7 ) the software also includes some protective methods
而系統處理軟體的作用是：利用pc兼容機，將上述裝置的輸出信號（ 1 ）通過并行口輸入（ 2 ）記錄成文件（ 3 ）逐點顯示出來（ 4 ）可人工進行化簡，編輯（刪、改點）等（ 5 ）可在給定誤差范圍內進行人工擬合，用直線和圓弧取代原來的點，得到一個與原圖形的誤差在規定范圍內，又消除跟蹤過程中因受到各種干擾而造成的缺陷，由盡可能少而簡捷的數學曲線描述的圖形（ 6 ）把這些圖形轉化成用於編制數控線切割加工程序及autocad能夠識別的文件（主要指dxf格式） （ 7 ）該軟體還有一定的加密措施。With the development of the fiber communication, very high speed fiber optic backbone has being closed to the customer, but few customers has connected to fiber backbone directly. on the other hand, many customers are running some high speed network within their lan, such as fast ethernet ( 100mbps ), or gigabit ethernet ( 1. 0gbps )
隨著光纖通信技術的發展， 2 . 5g - 10gbps的光纖干線正在不斷的向用戶延伸，但由於成本和光纖敷設工程上的難道，只有很少的用戶直接和光纖干線相連，通常光纖只延伸到了路邊、小區；另一方面，許多用戶內部的局域網也具有很高的傳輸速率，一般為100mbps甚至1gbps的以太網。However, df pre - processing is not required in a interferometer direction finder. it only makes use of the phase relations or differences of sensors disposed at different position. azimuth and elevation are caculated from the phase differences or displayed directly on a crt drived by the voltage or current from the phase differences
干涉儀測向不必進行測向信號預處理而是直接或間接求取在空間上分開的傳感器上感應電勢之間的相位關系，即干涉相位差，方位角或仰角是直接由干涉相位差計算得到，或將兩基線正交的天線陣的干涉相位差轉化為驅動電壓（電流）分別加到crt陰極顯示器的垂直偏轉線圈和水平偏轉線圈，模擬顯示出來波方位，干涉儀測向為典型的相位測向方法。Because of the channel, hydrology and special of term weather in the yangtze river, shippingenterprises complexity, the yangtze river navigation safety management was very outstanding. the yangtze river navigation safety management has been paid. attention by the ministry of communications
但是，由於長江航道、水文、氣象條件的特殊性，水運企業經濟成份的多樣性，以及安全管理的復雜性，長江水上安全問題也十分突出，長江干線的水上交通安全問題一直是交通部安全管理工作的重點。The system is stabilized against external disturbances. this means that the los is really pointing most of the time into a circle around the aim point because of stabilization loop finite bandwidth. the diameter of this circle represents stabilization accuracy
這是因為系統在抑制外來干擾而實現穩定時，由於穩定環有限帶寬的存在，瞄準線實質上是瞄準在目標中心點周圍一定的圓域內，該圓域的直徑反映了系統的穩定精度。The automation of coal flotation has been wandering for many years in china. the production efficiency is relatively low because of the feed forward control which adds the flotation reagent based on the fine coal in feed slurry, ignoring the quantity and quality of the products. aiming at this problem, method of measuring the flotation technical parameters was studied, the slurry level meter and the slurry ash - measuring device were worked out, and the computer control system of the coal flotation was designed. the feedback control was realized by using the fuzzy logic control control technology to regulate the reagent addition and the slurry level in the flotation tank according to the concentrate ash content detectedby the coal slurry ash - measuring device developed. the industrial experiment indicates that the performance inedxes of the coal slurry ashmeasuring device have come up to the advanced levek of the world. the application of the detection and control system in huaibei coal preparation plant results in a high concentrate recovery, a decrease of the reagent consumption, ensuring a highly efficient operation
浮選自動化在我國多年來徘徊不前，一直採用根據入浮煤漿中的干煤泥量來確定加藥量的前饋控制方法，而不直接以產品的數質量指標作為控制目標，導致浮選生產效率較低.針對上述問題，研究了浮選工藝參數的檢測方法，開發了浮選漿位儀和煤漿測灰儀，設計了浮選計算機控制系統，它根據煤漿測灰儀旁線檢測的精煤灰分，運用模糊控制技術，通過調整浮選藥劑添加量和浮選機漿位，來實現浮選過程的反饋控制.工業性試驗表明，煤漿測灰儀的性能指標接近國外先進水平.煤泥浮選測控系統在淮北選煤廠的現場使用，使浮選生產在精煤灰分合格的前提下，得到了較高的產率，並降低了藥劑用量，從而保證選煤廠高效率地運行Abstract : the automation of coal flotation has been wandering for many years in china. the production efficiency is relatively low because of the feed forward control which adds the flotation reagent based on the fine coal in feed slurry, ignoring the quantity and quality of the products. aiming at this problem, method of measuring the flotation technical parameters was studied, the slurry level meter and the slurry ash - measuring device were worked out, and the computer control system of the coal flotation was designed. the feedback control was realized by using the fuzzy logic control control technology to regulate the reagent addition and the slurry level in the flotation tank according to the concentrate ash content detectedby the coal slurry ash - measuring device developed. the industrial experiment indicates that the performance inedxes of the coal slurry ashmeasuring device have come up to the advanced levek of the world. the application of the detection and control system in huaibei coal preparation plant results in a high concentrate recovery, a decrease of the reagent consumption, ensuring a highly efficient operation
文摘:浮選自動化在我國多年來徘徊不前，一直採用根據入浮煤漿中的干煤泥量來確定加藥量的前饋控制方法，而不直接以產品的數質量指標作為控制目標，導致浮選生產效率較低.針對上述問題，研究了浮選工藝參數的檢測方法，開發了浮選漿位儀和煤漿測灰儀，設計了浮選計算機控制系統，它根據煤漿測灰儀旁線檢測的精煤灰分，運用模糊控制技術，通過調整浮選藥劑添加量和浮選機漿位，來實現浮選過程的反饋控制.工業性試驗表明，煤漿測灰儀的性能指標接近國外先進水平.煤泥浮選測控系統在淮北選煤廠的現場使用，使浮選生產在精煤灰分合格的前提下，得到了較高的產率，並降低了藥劑用量，從而保證選煤廠高效率地運行This paper suggests that the integral of the state equation is evaluated directly through the exponential matrix based on the pim, thus several series solutions are obtained. utilizing the symmetry of matrices and the idea of substructure, the computational precision and efficiency of the pim are improved
本文深入研究精細積分及動力方程演算法，基於指數矩陣計算、 pade逼近理論，在時域上對非線性動力狀態方程直接積分求解，構建若干系統響應求解格式，並分析了演算法精度、效率；通過矩陣變換，利用矩陣對稱性、子結構等方法改進精細積分計算效率。Based on the computer geometrical models of straight bevel gears built, a iso - parametric tool path algorithms which was fit for the machining of multiple surfaces has been designed. the algorithms can solve the problems which exist in machining multiple non - rectangle parameter surfaces and avoid the calculation of sufaces intersection
在建立直齒圓錐齒輪計算機模型的基礎上，提出了適于多曲面加工的等參數線刀軌生成演算法，避免了在對多張相鄰非矩形參數域齒面進行加工時所產生的干涉問題，而且曲面無需求交，使得計算成本下降。Transmition velocity relys on the style of encode and modulation essentially during modern data transmition for the quality of using line bandwidth and the immunity of code ties on them tightly. but it is important that the velocity of data transmition reaches its limitation in fact for the interface of environment and cross - talk. so for the improvement of transmition velocity, we must analyze the characteristics of noise signal and the model of line deeply and then take some useful measures to better the immunity of modulation wave
在現代通信的數據傳輸過程中，傳輸速率本質上是由傳輸的編碼方式和調制方式決定的，因為編碼方式和調制方式直接決定了線路頻帶利用率和碼元抗干擾能力的好壞，因而直接決定了傳輸速率；但是在實際應用過程中，數據傳輸速率是不可能達到理想狀況的，因為環境干擾、串音干擾等因素的存在使得線路的頻帶不可能被完全利用起來；因此，必須認真分析線路的噪聲信號的特性以及噪聲線路的模型，以便在編碼方式和調制方式中針對性的做一些改進措施以改善調制波形的抗干擾能力，使得傳輸速率能夠進一步提高。However, the traditional dc motor uses brush so as to switch the phases, so there are relative mechanical frictions. then it comes out many fatal failing, such as yawp, spark, wireless disturb, etc. what " s more, its making cost is high, its maintain is also difficult, therefore its application is greatly limited
直流電動機具有運行效率高和調速性能好等諸多優點，但傳統的直流電動機均採用電刷，以機械方法換向，因而存在相對的機械摩擦，由此帶來了噪聲、火花、無線電干擾以及壽命短等致命弱點，再加上製造成本高及維修困難等缺點，從而大大地限制了它的應用范圍。To construct additional rail between sheung shui and lo wu or to operate feeder bus service between these two places for hours after the rail service is closed
興建新鐵路干線，連接上水及羅湖；或提供接駁巴士服務一直至鐵路關閉后的數小時。Then the complete simulink simulation model of soft cut - in system is established. what is more, an effective control strategy of soft cut - in unit that the cut - in rotate speed of wtg and scr phase - shifting rule should be adjusted in accordance with the rotate acceleration of rotor is put forward. on the basis that the simulation model is validated, the simulation and analysis of direct cut - in and soft cut - in process of wtg are carried out, which aims at supplying necessary referential material for the r & d of soft cut - in unit
本文以軟並網裝置主電路的分析與設計?軟並網控制系統的建模與模擬分析?可控硅移相觸發軟並網控制電路的設計為主線，首先進行了軟並網裝置主電路部分的分析與設計；然後建立了雙繞組風電機組的完整模擬模型，在對模型進行驗證的基礎上，提出了有效的風電機組軟並網控制策略，即機組並網轉速與可控硅移相規律應隨電機轉子加速度進行調節，並進行了風電機組直接並網與軟並網過程的模擬分析，得出了相應的結論，為軟並網裝置的研製提供了必要的參考依據；最後設計了軟並網系統的可控硅移相觸發控制電路的硬體與軟體的實現方案，並提出了系統硬體與軟體的抗干擾措施，重點闡述了主要軟體模塊的實現方案。It should be of great significance if improvement on 2 - d algorithms and 3 - d clipping and line - generating algorithms become reality
如果能在現有演算法的基礎上，實現對若干演算法的改進以及進行三維裁剪和三維直線生成演算法的研究無疑具有重大的現實意義。Use unlined paper, since the presence of lines on paper may hinder the non - linear process of mapping. if you must use lined paper, turn it so the lines are vertical
用沒有橫線的紙，因為紙上的橫線會對非線性關系的概念圖產生干擾，如果你非用不可，就將線轉為豎直著。The marathon on sunday starts at 7am at the cultural centre at tsim sha tsui, follows the no 3 expressway to ting kau, doubles back to the olympic station before ending at the shum shui po stadium
馬拉松于本星期日早上七時于尖沙咀文化中心起步，沿三號干線直走至汀九，回程再在佐敦奧運站折返，至深水?運動場結束。分享友人