聲中繼器 的英文怎麼說
中文拼音 [shēngzhōngjìqì]
聲中繼器
英文
acoustic relay-
This thesis explains the necessity of the character recognition technology of the computer at first, describe the meaning in which the handwritten numeral discerns ; pretreatment technology of handwritten numeral recognition, including two value, line segmentation, word segmentation smooth, removing noising, standardization and thinning are discussed two value concretely discusses whole threshold value, some threshold value, dynamic threshold value and utilize space information to carry on threshold, which are several kinds of common method of choosing threshold value, especially utilize space information to carry on threshold value is describe in detail ; adopting to the foundation of thinning based on mathematics morphology, thinning algorithm of serials same and thinning algorithm of protecting shape are discussed ; afterwards, according to principle ' s diagram of the on - line character recognition, by analyzing the structure feature of the handwritten numeral, this thesis has proposed the online recognition te chnology of the free handwritten numeral based on the stroke feature and the online recognition technology of the free handwritten numeral based on the multistage classifying device. detail narrated noise removing, stroke characteristic definition and discernment, distance criterion of whole word match ; then under the foundation of handwritten numeral segmentation, off - line handwritten numeral recognition is researched. especially minimum distance classifying device, tree classifying device and adaptive resonance ( art ) network classifying device is discussed at the same time, believes degree analyses are introduced to integrate a lot of classifying devices ; at the end, the typical application of the handwritten numeral recognition was briefly narrated, its application in extensive data statistics, financial affairs, tax, finance and mail sorting have been explored
二值化時對整體閾值二值化、局部閾值二值化、動態閾值二值化和利用空間信息進行閾值選取幾種常用的閾值選取方法進行討論，特別對利用空間信息進行閾值選取進行了詳細論述；在對通過對基於數學形態學的細化的基礎上，討論序貫同倫形態細化演算法和保形的快速形態細化演算法；然後依據聯機字元識別原理框圖，分析了手寫數字的結構特點，提出了基於筆劃特徵的任意手寫數字在線識別技術和基於多級分類器任意手寫數字在線識別技術，對其中涉及的筆劃識別前的噪聲處理、筆劃間特徵量的定義及識別、整字匹配的距離準則進行了詳細敘述；繼而在對手寫數字的分割的基礎下對脫機手寫數字識別進行了研究，對基於最小距離分類器字元識別、基於樹分類器的字元識別、基於自適應共振（ art ）網路的字元識別分別進行了詳細討論，並引入置信度分析將多個分類器進行了混合集成；最後簡單闡述了手寫數字識別的典型應用，對其在大規模數據統計、財務、稅務、金融及郵件分揀中的應用進行了探索。Speaker : the resulting action, known now by all the world, has marked sunday. september the third, 1939, as a date to be long remembered. at eleven - fifteen this morning the prime minster, speaking to the nation from number ten downing street, announced that great britain is at war with germany. meanwhil the london public are earnestly reminded of the emergency orders already issued. no light of any descrption should be visible after blackout time. no dogs or cats will be allowed to roam the streets after dark and it should be remembered that pets will not be permitted in public air raid shelters. gas masks and warm clothing should be placed at hand before retiring and it is suggested that a warm drink in a thermos would be of great comfort to small children who might have to be awakened at an unusual hour. every effort should be made to quiet the nerves of those children who still remain in london despite the evacuation which will continre until a late hour this evening
揚聲器:現在全世界都知道了，一會最後的決議標志著1939年9月3日星期日將成為一個永遠值得紀念的日子，今天上午11點15分，首相在唐寧街10號向全國宣布英國對德國宣戰，在次我們提醒倫敦市民認真遵守已發布的緊急狀態命令:在燈火管制時間里不得有任何燈光，天黑以後不得有狗貓在街上游蕩.並且切記在公共防空洞里不得有寵物.睡覺前應將防毒面具和于寒衣物放在順手的地方，我們建議暖瓶中都沖好熱水或飲料，這對安定在非常?不得不被叫醒的兒童非常有溢.應該盡量穩定那些仍留在倫敦的兒童的情緒.疏散工作將繼續進行.直到深夜In the system, the low voltage power line is the first signal tunnel without any other relay equipments between customer terminal and substation collector, public telephone line serves as the second signal tunnel between substation and management center computer. as a breakthrough of conventional concept of electricity meter, this thesis initiate a new concept, namely, intelligent power customer terminal ( shortly, customer terminal ), which is developed with spread spectrum plc communication functional and possesses many advanced functions, such as, in addition to electric energy acquisition, guarding against electricity pilfering, preventing wrong connection, protecting malfunction, remote communication ( for example, remote power supply or halt, remote configuration of electricity meter, remote load control, etc ), and so on
本文首先系統地總結了目前國內外低壓電力網數據傳輸技術的研究現狀和存在的問題，在此基礎上，從理論上論證了在低壓電網上應用擴頻載波數據通信技術的可行性和優越性，並重點論述了擴頻載波技術抗電力線噪聲干擾的機埋；本文提出了一個新穎的基於低壓電力線擴頻載波通信技術的集中遠抄系統的總體方案，即由用戶終端、集中器和電能管理系統所組成的網路系統，其中，用戶終端到配變集中器用低壓電力線作為通道，中間無需其他硬體中繼設備，集中器到電能管理系統用公用電話網作為通道。When master first appeared inside the lecture hall, a scottish initiate greeted her with a traditional scottish bagpipe tune. master and everyone else really enjoyed the performance. she said that it sounded like " home " heaven, because the bagpipe sound is the highest one in the kingdom of god. she continued saying that the scottish ancestors must have known this, and that s why they came up with an instrument to make a sound similar to that of the kingdom of god
丁堡的講經從下午三點開始，當師父出現在講經大廳時，蘇格蘭同修以傳統的蘇格蘭風笛歡迎師父，師父非常喜歡，大眾也是，師父說風笛的聲音像是鄉音，因為風笛的聲音是天國中最高等級的音，師父繼續說，蘇格蘭的祖先一定明白其中道理，所以做出這樣的樂器，發出類似天國的音流。Master and everyone else really enjoyed the performance. she said that it sounded like " home " heaven, because the bagpipe sound is the highest one in the kingdom of god. she continued saying that the scottish ancestors must have known this, and that s why they came up with an instrument to make a sound similar to that of the kingdom of god
丁堡的講經從下午三點開始，當師父出現在講經大廳時，蘇格蘭同修以傳統的蘇格蘭風笛歡迎師父，師父非常喜歡，大眾也是，師父說風笛的聲音像是鄉音，因為風笛的聲音是天國中最高等級的音，師父繼續說，蘇格蘭的祖先一定明白其中道理，所以做出這樣的樂器，發出類似天國的音流。When master first appeared inside the lecture hall, a scottish initiate greeted her with a traditional scottish bagpipe tune. master and everyone else really enjoyed the performance. she said that it sounded like " home " ( heaven ), because the bagpipe sound is the highest one in the kingdom of god. she continued saying that the scottish ancestors must have known this, and that s why they came up with an instrument to make a sound similar to that of the kingdom of god
丁堡的講經從下午三點開始，當師父出現在講經大廳時，蘇格蘭同修以傳統的蘇格蘭風笛歡迎師父，師父非常喜歡，大眾也是，師父說風笛的聲音像是鄉音，因為風笛的聲音是天國中最高等級的音，師父繼續說，蘇格蘭的祖先一定明白其中道理，所以做出這樣的樂器，發出類似天國的音流。But the sound field generated by this kind of transducers in medium has s ome " congenital " shortcomings : there always exist zero areas in sound - axes of near - field however we change the frequencies and radii of transducers, so we need to look for better radiate transducers. in this dissertation, we design and make two kinds of radiate transducers : bunchiness control transducer with electric polarity division and gaussian transducer
然而，這種類型的換能器在媒質中產生的輻射聲場，有其「先天性」的不足之處，在近場中無論平面活塞的頻率和半徑如何變化，軸上和沿徑向上都呈現出極大和極小交替分佈的干涉現象，因此我們有必要繼續尋求更為理想的輻射形式。The forming mechanism of crosstalks in the tdm system was analyzed theoretically, and the relationship between crosstalks and the extinction ratio of optical pulse modulator used in the tdm system was investigated. the interchannel and intrachannel crosstalks in the wdm system were discussed separately, and the contributions to crosstalks were appraised from architecture ’ s alteration, the finite isolation between channels in multiplexers or demultiplexers, and nonlinear effects in the system. noises in the large - scale multiplexing system were studied theoretically, and all kinds of factors were considered that have relation to noises, phase resolution, and dynamic range of the system, such as multiplexing channel number, the length of the transmission fiber, using in - line erbium - dropped fiber amplifiers or not, and so on
本文從理論上分析了光纖水聽器時分復用系統串擾的形成機理，分析了光脈沖調制器的消光比與系統串擾的關系;分別對光纖水聽器波分復用系統的異頻串擾和同頻串擾進行了理論分析，研究了光纖水聽器波分復用結構、波分復用器與解復用器隔離度等因素以及非線性效應對系統串擾的影響;對大規模光纖水聽器復用系統噪聲進行深入細致的理論分析，研究了系統噪聲、相位解析度、動態范圍與復用數目、傳輸光纖長度、中繼光纖放大器等諸多因素的關系。The study and design on the full automation inserting dynamic and static spring leaf machine applicant : zheng tianlai supervisor : associate professor hu guoqing the labour denseness model was adopted in the most of relay production lines presently inland, which makes the inserting force of the spring - leaves uneven and affects the tangent resistance, so the artificial factor of the product is serious, and the stability is bad
目前國內繼電器生產中大多採用勞動密集型，繼電器簧片的插入力大小不均勻，影響接觸電阻，所以產品質量人為因素很重，穩定性差。廈門宏發電聲有限公司繼電器生產的簧片插入工序是雇傭大量的工人進行操作，產品的質量無法保證。分享友人