話頻線路 的英文怎麼說

中文拼音 [huàbīnxiànlù]
話頻線路 英文
voice line
  • 話 : Ⅰ名詞（說出來的能夠表達思想的聲音, 或者把這種聲音記錄下來的文字） word; talk Ⅱ動詞（說; 談） talk about; speak about
  • 頻 : Ⅰ形容詞（次數多） frequent Ⅱ副詞（屢次） frequently; repeatedly Ⅲ名詞1 [物理學] （物體每秒鐘振動...
  • 線 : 名詞1 （用絲、棉、金屬等製成的細長的東西） thread; string; wire 2 [數學] （一個點任意移動所構成的...
  • 路 : 1 （道路） road; way; path 2 （路程） journey; distance 3 （途徑; 門路） way; means 4 （條理） se...
  • 線路 : 1. [電學] circuit; line 2. [交通運輸] line; route
  1. This is a computerised voice communication system between pilots and air traffic controllers, and between air traffic control positions in the air traffic control centre, aerodrome control tower, rescue coordination centre and aeromobile centre by using pre - set switching and distribution of various aeronautical frequencies and direct communication lines. the new computerised system will enhance the overall efficiency in communications

    讓機師與管制員之間，或航空交通管制中心、指揮塔、援救協調中心和航空通訊中心內各不同管制崗位之間，能用預先設定的系統作直接通話，包括可轉換和發布的航空通訊頻道和直接通訊線路等。
  2. Cas ( communication automation system ) includes cabling system, broadband netw - ork system, mobile phone coverage system, cable tv and digital communication system

    Cas通信自動化系統，綜合布線、寬頻網路、移動電話樓內覆蓋系統、有線電視及數字程式控制電話系統。
  3. As the key block of the wireless communication transmitter in rf, it is very useful in improving the output power and efficiency, lowering the loss of the supply, lowering the size and the weight, lengthening the time of communication. class e power amplifier which is suitable to amplify envelop signal is very important in modern communication system

    功率放大器（ pa ）作為無線通信射頻發射機中不可缺少的關鍵電路，對于提高手機的功率效率、降低電源損耗、減小體積重量、延長通話時間有著舉足輕重的作用，而適用於恆包絡信號放大的e類功率放大器，更是在現代通信系統中佔有十分重要的地位。
  4. Once has the bandits and thieves to intrude guards against the place, the detector launches the wireless coded signal immediately, the networking center number which installs when is apart from defense area 150 meter within the main engine to send out the police whistle sound to report to the police immediately, reports to the police dials to establish in advance or reports to the police the telephone, the handset number, answers in the police telephone to return puts user pre - record to report to the police the pronunciation, long - distance reports to the police, simultaneously comes the real - time transmission through the internet to deploy troops for defense, to withdraw from a defended position, to report to the police and so on the condition, inquires the historic record through the computer network

    該系統還採用美國進口原裝晶元與先進的無線數字高頻技術微電腦cpu控制器主機組成。在防範地點安裝好主機后，並設置在布防狀態。一旦有盜賊闖入防範地點，探測器立刻發射無線編碼信號，安裝在距防區150米以內的主機立即發出警笛聲報警，報警時撥打預先設定的聯網中心號碼或報警電話手機號碼，接警電話里回放用戶預錄的報警語音，遠程報警，同時通過網際網路來實時傳遞布防撤防報警等狀態，通過電腦網路來查詢歷史記錄。
  5. Grading standard for quality of carrier telephone equipment. open wire high band 3 - channel carrier telephon equipment

    載波電話設備質量分等標準.明線高頻3路載波電話設備
  6. In other way, the telephone line expander which has many characteristics just as the little of declination, the far distance of communication, the convenience of using and protecting can transmit tone signal directly and is suitable for the performance of telephone line

    同時，電話線路擴容器直接傳輸音頻信號，適合電話線路特性，具備衰耗及串音小，通話質量好和通信距離遠，使用及維護簡便等優點，具有廣泛的應用前景和使用價值。
  7. Guest room assorts president suites room type : : computer network sockets voice mail satellite cable tv idd telephone digital safe mini bar tea and coffee tableware executive desk internal film channels electric iron and ironing board

    客房設施:電腦網路插座留言信箱衛星有線電視國際長途直撥電話電子保險箱迷你酒吧沖茶及咖啡餐具行政辦公桌閉路電影頻道熨斗及熨板
  8. Abstract : biological invasions are a continuous feature of a non - equilibrium world, ever more so as a result of accidental and deliberate introductions by mankind. while many of these introductions are apparently harmless, others have significant consequences for organisms native to the invaded range, and entire communities may be affected. here we provide a survey of common models of range expansion, and outline the consequences these models have for patterns in genetic diversity and population structure. we describe how patterns of genetic diversity at a range of markers can be used to infer invasion routes, and to reveal the roles of selection and drift in shaping population genetic patterns that accompany range expansion. we summarise a growing range of population genetic techniques that allow large changes in population size ( bottlenecks and population expansions ) to be inferred over a range of timescales. finally, we illustrate some of the approaches described using data for a suite of invasions by oak gallwasps ( hymenoptera, cynipidae, cynipini ) in europe. we show that over timescales ranging from 500 10000 years, allele frequency data for polymorphic allozymes reveal ( a ) a consistent loss of genetic diversity along invasion routes, confirming the role of glacial refugia as centres of genetic diversity over these timescales, and ( b ) that populations in the invaded range are more subdivided genetically than those in the native range of each species. this spatial variation in population structure may be the result of variation in the patchiness of resources exploited by gallwasps, particularly host oak plants

    文摘:生物入侵是不均衡世界的一個永恆話題，尤其是當人類有意或無意地引入物種后.很多引入顯然是無害的，但另外一些則有著嚴重的後果，會給入侵地的生物以至於整個生物群落造成影響.本文總結了分佈區擴張的常見模式，概述了它們對遺傳多樣性和種群結構式樣所造成的影響.描述了如何根據以一批遺傳標記所得到的遺傳多樣性式樣來推斷入侵途徑，來揭示伴隨擴張選擇和漂變在形成種群遺傳樣式中的作用.本文對日益增多的群體遺傳學方法進行了總結，這些技術可以用來在不同的時間尺度上推斷種群規模所發生的巨大變化（瓶頸效應及種群擴張） .最後，我們以歐洲櫟癭蜂（膜翅目，癭蜂科，癭蜂族）一系列入侵的數據為例對一些方法進行了說明.從500 10000年的時間尺度上，多態的等位酶位點上等位基因頻率的數據表明: 1 ）遺傳多樣性沿入侵路線呈不斷下降的趨勢，支持了冰河期避難所作為遺傳多樣性中心的作用; 2 ）入侵地區的種群與該物種原產地的種群相比，遺傳上的分化更為強烈.這種種群結構在空間上的變異可能是被櫟癭蜂開發的資源尤其是櫟樹寄主在斑塊上出現變異的反映
  9. 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。
  10. It is most extensively used lines of communication to public switched telephone network ( pstn ), hence the video surveillance system based on pstn possesses widespread application prospects

    公共電話交換網（ pstn ）是最廣泛使用的通信線路，因此在pstn線路上傳輸視頻具有廣闊的應用前景。
  11. Network - to - customer installation interfaces - analog voicegrade switched access lines with network - implemented coin - operated payphone feature

    網路和用戶裝置間的介面.帶網路實現投幣付費電話功能的模擬音頻轉換訪問線路
  12. Ti said monday the technology will increase the capacity of digital subscriber lines, or dsl, to make the phone companies ' broadband offerings more competitive with cable - modem service

    該公司昨天宣布的這項新技術可以增加dsl線路的功能，讓電話公司在和有線寬頻服務競爭時更具吸引力。
  13. Specification for 12 - channel telephone carrier terminal equipment used on the symmetric pains of 2. 6 9. 5mm coaxial cable

    2 . 6 9 . 5mm綜合中同軸電纜高頻四芯組或高頻線對12路載波電話終端設備技術條件
  14. For recent years, adsl has world widely employed and widely used in many aspects such as vod, remote medical treatment and e - shopping etc. but we noticed that the traditional telephone networks are designed for the transmission of low frequency signals, and the adsl ' s frequency rang is from 0 to 1. 104mhz, so we must confront the signal attenuation, the loop line noise impairments, the crosstalk interferences, the bridge tap reflections and the rf disturbances problems and many other problems when transmitting the adsl signals one the telephone networks

    近幾年來， adsl在世界范圍內得到充分的使用，廣泛應用於視頻點播、遠程醫療、網上購物等各個方面。但是由於電話線網路是專門為傳輸低頻信號而設計，而adsl的頻譜范圍在0 1 . 104mhz內，因此在傳輸adsl信號時，面臨著信號衰減、線路噪聲、串音干擾、橋接抽頭反射和射頻干擾等等多方面的問題，這就要求在adsl開通之前對線路進行一系列的測試。
  15. The connection charge is applicable to customer requesting for an adsl line exclusively used for broadband but without voice service provided

    此接駁費適用於客戶要求一條只用作寬頻上網而不提供話音服務之線路。
  16. The test methods for the technical specifications of inband pulsing single frequency line signalling system for automatic telephone switching network

    電話自動交換網帶內單頻脈沖線路信號技術指標測試方法
  17. As a result, signals leak across conventional hybrids at all other frequencies causing oscillation in full duplex systems and unreliable vox （ voice operated xmit ） operation in half - duplex systems

    因此，在所有不同頻率上信號通過傳統的混合線路，信號泄漏會在全雙工系統和不可靠的vox （話音控制發射）在半雙工系統中的操作中產生震蕩。
  18. Inband pulsing single frequency line signaling system for telephone automatic switching network

    電話自動交換網帶內單頻脈沖線路信號方式
  19. There are a lot of signals transmitted in the optic fiber communication system, such as : video, audio, data, telephone or other user - defined signals. if one fiber transmites one signal, it will take a lot of money. it is necessary to take multiplexing in order to make use of optic fiber effectively and reduce the cost

    在光纖通信系統中要傳輸的信號有許多種，如視頻圖象、音頻、數據、電話或其他用戶自定義的信號，每種信號分別用一條光纖線路來傳輸，必然價格昂貴，所以為了提高光纖的利用率，降低成本，必須將各種信號進行復用。
  20. Conventional hybrids used in all existing phone patches can provide good balance at only one frequency into a complex impedance such as telephone line

    傳統的混合線路採用所有現行的電話臨時線路技術，只能做到單一頻率的良好平衡進入如電話線的復數阻抗中。
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