晶體鐘 的英文怎麼說

中文拼音 [jīngzhōng]
晶體鐘 英文
crystal clock
  • : Ⅰ形容詞(光亮) brilliant; glittering Ⅱ名詞1. (水晶) quartz; (rock) crystal 2. (晶體) any crystalline substance
  • : 體構詞成分。
  • : Ⅰ名詞1 (用銅或鐵製成的響器) bell 2 (計時器) clock 3 (指鐘點、時間) time 4 (沒有把兒的杯子...
  • 晶體 : [晶體學] crystal; vitrella; crystal body; crystalloid; x-tal
  1. In routine extracapsular cataract extraction ( ecce ), we occasionally may encounter a condition that the zonule around 12 o ' clock direction disrupted with prolapse of a small porion of vitreous during the nucleus being milked out and not delivered yet

    作者利用動物模式提出在囊外白內障手術中,核擠出時,因輪部切口較小,以至尚未擠出核,即發生十二點方向品?帶斷裂合併部分玻璃膨出的情況下,如何在盡量減少玻璃進一步傷害下順利擠出核,並植入後房人工水
  2. Today, quartz crystal clocks are generally used on the seismograph stations.

    目前,地震臺站一般採用石英晶體鐘
  3. 32khz tuning fork quartz crystal units for clocks and watches type ju38 and ju26

    Ju38和ju26型表用32khz音叉石英元件
  4. The subject has mainly finished designing and debugging software and hardware of a / d decode module, fpga video processing module, video data frame deposit module, base clock produce module, d / a encode module, i2c bus control module, etc. a / d decode module gathers analog tv signals and realize video decode ; fpga video processing module deals with the data after decoding and produces systematic logic control signal ; video data frame deposit module offers the buffering area to a large n umber of high - speed video data ; base clock produce module through input basic video signal offers system accurate relevant synchronous signal ; under control of video processing module d / a decode module convert digital video data into compound tv signal which can be shown in tv directly ; i2c bus control module is used to initialize the chip of system by simulating i * c bus timing

    本課題主要完成了a d解碼模塊、 fpga視頻處理模塊、視頻數據幀存模塊、基準時產生模塊、 d a編碼模塊、 i ~ 2c總線控制模塊等部分軟、硬設計及調試。其中a d解碼模塊採集模擬電視信號實現視頻解碼; fpga視頻處理模塊對解碼后的數據進行去噪處理的同時還負責系統的邏輯控制;視頻數據幀存模塊為大量高速的視頻數據提供緩沖區;基準時產生模塊通過輸入基準視頻信號為系統提供精確的相關同步信號; d a編碼模塊在視頻處理模塊的控制下把數字視頻數據轉換成復合電視信號供顯示用: i ~ 2c總線控制模塊模擬i ~ 2c總線時序實現對系統中編、解碼元的初始化。
  5. Then we turned in the input laser to observe the decline of phase conjugate reflectivity. measuring dark storage time, we found that the phase conjugate reflectivity declined to 50 % of steady - state value when photorefractive crystal was in dark condition for 30 minutes. even after 9 hours, there still existed remaining reflectivity, which could n ' t be measured by our detector

    因而研究了內位相共軛光柵存儲特性,即觀察位相共軛光柵形成后在黑暗條件下能存儲的時間,實驗結果得出位相共軛光柵在黑暗中30分后,位相共軛反射率下降到原來的50 ,而在黑暗中9小時后,位相共軛光非常微弱,無法測出。
  6. Jingdi business hotel of gold city of nanchang makes the investment in the brilliant emperor s commercial hotel, built advanced commercial affair type hotels according to the four - star standard. hotels are located in the entrance of development zone of high - new industry with quiet environment, adjoin the lake district government of green hill, cultural square of lake recreation of green hill and east furniture exposition center of deer s pot of beijing. the traffic is very convenient, 15 minutes from the railway station, need the drive for 40 minutes from the airport, public transit 5 no. house phone, 123 no., 231 no. can go to hotel gate directly stand, call : lake district government of green hill

    帝商務大酒店是由南昌市新金城賓館有限公司投資,按四星級標準興建的高級商務型酒店酒店坐落於環境幽雅的高新產業開發區入口處,毗鄰青山湖區政府,青山湖休閑文化廣場和京東鹿鼎傢具博覽中心交通十分便利,距火車站僅15分車程,距機場需40分車程,公交5路內線, 123路, 231路均可直達酒店門口站名為:青山湖區政府.酒店設施全,集商務旅遊,會議,住宿,餐飲,娛樂,休閑於一
  7. The software includes the program of communication with a stand - alone module, of the identification code returned from a stand - alone module, of opening / closing door, of display, of identification the key number, of reading / writing device by i2c bus. the main function of fingerprint menjin system used for the safe is to open door by fingerprint

    主要由與指紋識別模塊的通訊程序模塊、指紋識別模塊返回代碼識別程序模塊、開門模塊程序模塊、關門程序模塊、顯示程序模塊、鍵盤鍵號識別程序模塊、按i ~ 2c總線協議對時元和串列e ~ 2prom的讀/寫程序模塊等模塊組成。
  8. The level adjustment circuit 100 lowers the clock signal input to the first clock terminal ck1 by a predetermined value from h level and provides the signal to the gate of the transistor q5

    電平調節電路100將送往第一個時終端ck1的時信號從h電平降低一個預定值,並將此信號送往管q5的輸入端。
  9. Gps is a planet wireless conductance system which is global and all - weather, gps can offer high precision time orientation information to infinite user, clock precision reachs 10 ? 6 magnitude 。 not only changes traditional time method of quartz crystal clock, but also replaces wireless shortwave and even more lowfrequency signal and tv signal whose overlay range is limited and low precision, offers advantage to geology field task, achieve automatization and high precision of seismic flow observation

    利用gps授時信號全方位、全天候、連續性、實時性和高精度的特點,以gps信號為基準來校準本地時振蕩時或原子) ,將gps接收機輸出信號的長期穩定度和恆溫振的短期穩定度相結合,應用大規模可編程邏輯器件,設計和實現了由pc104控制的實時在線授時系統。
  10. The precise clock source is crystal oscillator made of 74hc04 ; the mute circuit can conceal the error and solve the problem of noise ; the antenna switching circuit in the receiver is to select one antenna from two which receives signal better. it can improve the quality of the receiving audio signal, restrain the noise effectively and promote the system performance

    高精度的時源是由74hc04構成的振蕩器;靜音電路將出錯的音頻信號進行差錯掩蓋,很好地解決了噪聲問題;接收機採用兩副天線切換工作,提高了音頻信號接收質量,有效地抑制干擾,提升了系統的性能。
  11. The current models have phased out the g3 but continue to use the similar g4, both 32 - bit chips, running at various clock speeds ; the recently introduced g5 is a 64 - bit ibm chip that mostly adds some multimedia - specialized instructions to the power4 chip models

    當前的g3型已經逐步被淘汰,取而代之的是類似的g4型,它們都是32位元,運行於不同的時脈沖速度下;最近推出的g5是一款64位ibm元,主要是向power4型元中添加了一些多媒專用指令。
  12. These clocks depend on electricity and the vibrations of the atoms of a quartz crystal, and are very complicated.

    這些靠電和石英的原子振蕩走時,是十分復雜的。
  13. The concept of " timing " in the article is not the clock in our ordinary living, but syntheses which is made up of some frequency source in the signal generator ( such as cs atom frequency standard, rb clock & high accuracy quartz crystal oscillator ) which produces the primary frequency, the matching input interface and the matching output interface and controlling circuit etc. for example, bits is a kind of timing equipment, which is used to control the timing of some functions

    本文論及的「時」概念不是指日常生活中使用的表,而是由產生基準頻率的信號發生器(如銫原子頻率標準、銣及高精度石英振蕩器等)中的某種頻率源以及相配套的輸入、輸出介面和控制電路等組成的一整套具有特定同步定時功能的綜合。如bits就是一種時設備,它提供用在通信系統中控制某些功能的定時的時間基準設備,時提供的信號稱為基準信號、定時信號或同步信號。
  14. Plc, robot and cad / cam are called the three major pillars in the modem factory automation. plc, as the head of the three, has become the leading basic automatic equipment in the field of the industry control in the early 1980s " but as a matter of fact, plc being with the lack of friendly man machine interface, rnakes no close relationship between human and machineometimes it even can not be promoted and applied in some fields aiming at the situation mat those imported products are too expensive while domestic products are of rare famous brands, a plc man - machine interface - plc monitor is developedthis paper systemically introduces the developing procedure for the whole system, including how to design hardware and software system. especially emphasizing plc communication protocol. real time message accessing, lcd controller instruction set, definition of data construction for message & tag screens and how to display thern, assignment of internal resource of cpuealization in software among plc & manitor, file format defining a nd download of user data, etcplc monitor will compensate some weakpoints of plc, and extend the application rangeimultanneously enhance the performance of plc and increase the attached value of mechanical machines, undoubtedly it will see hight market prospect

    針對人機界面進口產品的高昂價格和國產品牌稀少的這一現狀,研製開發了一種plc人機界面? plc監控器。本文系統地介紹了整個系統的開發過程,包括硬系統、軟系統的設計及實現,重點介紹了plc通信協議,監控器的基本工作原理以及期望實現的功能,監控器電源電路、 sram存儲器掉電保護電路、 cpu監控器電路、按鍵輸入電路的設計及按鍵狀態的讀入,時信息的設定與讀取, cpu液顯示器指令系統,信息畫面及標簽數據結構的定義及顯示方法, cpu內部資源的分配,監控器與plc通信的軟實現,文件格式的定義以及畫面數據的下載等。 plc監控器彌補了plc一些方面的不足,可以擴大plc的應用范圍,提升機械設備的檔次,增加設備的附加價值,具有一定的市場前景。
  15. According to the request of this subject, we have developed the system hardware and software for the slave device and the inspection software running on the pc. in this paper all of the followings is illustrated detailedly, such as the research on the principles of measurement and its realization, three means of water - level measurement that are separately based on photo electricity coder, pressure sensor and potentiometer ; selection of the microchip, we choose an advanced integrated soc ( system on chip ) microchip c8051f021 as the main controller ; realization of signal sampling, processing and its conversion in the mcu ; application of high precision 16 bits adc cmos chip - - ad7705 in our system, designing its interface with the microchip and relevant program ; using a trickle charge timekeeping chip ds1302 in the system which can provide time norm and designing of its i / o interface and program ; additionally, a 4 ~ 20ma current output channel to provide system check - up using ad421. in the system, ad421, ad7705 and the microchip compose spi bus ; to communicate with the master pc, here we use two ways which are separately rs232 and rs485 ; moreover, there are alarm unit, keyboard unit, power supply inspection unit and voltage norm providing unit in the system

    針對研製任務的要求,課題期間研製了下位機系統硬和軟,開發了上位機監控軟,其中所作的具工作包括:測量原理的研究和在系統中的實現,在本次設計中用三種方法來進行水位測量,分別是旋轉編碼器法、液位壓力傳感器法和可變電阻器法;主控元的選擇,我們選用了高集成度的混合信號系統級元c8051f021 ;實現了信號的採集和處理,包括信號的轉換和在單片機內的運算;高集成度16位模數轉換元ad7705在系統中的應用,我們完成了它與單片機的介面設計及程序編制任務;精確時元ds1302在系統中的應用,在此,我們實現了用單片機的i o口與ds1302的連接和在軟中對時序的模擬,該元的應用給整臺儀器提供了時間基準,方便了儀器的使用;另外,針對研製任務的要求,還給系統加上了一路4 20ma模擬信號電流環的輸出電路來提供系統監測,該部分的實現是通過採用ad421元來完成的,本設計中完成了ad421與單片機的spi介面任務,協調了它與ad7705元和單片機共同構成的spi總線系統的關系,並完成了程序設計;與上位機的通信介面設計,該部分通過兩種方法實現: rs232通信方式和rs485通信方式;系統設計方面還包括報警電路設計、操作鍵盤設計、電源監控電路設計、電壓基準電路的設計。
  16. In a book written by an electronics expert who once participated in the us star wars program, the author discussed his findings in his studies on several fallen ufos unidentified flying object. according to him, ufos do not look very big from the outside, but after entering them, one might spend twenty minutes walking without reaching the opposite end due to a conversion of time and space. unlike an aircraft cockpit with dashboards and maneuvering devices, the ufos have only a few seats, surrounded by walls which themselves serve as jumbo tv monitors

    他在對多種墜落的幽浮外星人飛行器考察研究時發現,從外面看幽浮並不很大,但進去后卻走二十多分走不到頭時空轉換,而且裏面沒有像飛機駕駛艙內那樣眾多的儀表及操縱裝置,只有幾個坐椅,四周的墻壁就是大屏幕觀測電視,內部也沒有復雜的集成電路,只有大的塊,整個飛行器完全是在外星人頭腦發出的電磁波控制下運行。
  17. Malachite is widely available but is mostly mined in zaire, ussr, germany, france, chile, australia, and the united states in arizona and new mexico

    形態常呈柱狀或針狀,十分稀少,通常呈隱乳狀塊狀皮殼狀結核狀和纖維狀集合
  18. As the semiconductor process technology steps into the deep sub - micro scale, the increasing number of transistors on single chip is making the digital system ever more complicated, and the clock frequency has already achieved the level of kilomega hz

    隨著半導工藝水平步入深亞微米階段,單個元上的管數越來越多,現代數字系統變得越來越復雜,時頻率也己經能達到千兆赫茲以上。
  19. The adc aperture jitter must be minimal, and the sampling clock generated from a low phase - noise quartz crystal oscillator

    Adc的孔徑抖動必需盡可能的小,而且要使用低相位噪聲的石英振蕩器作為采樣時發生器。
  20. Introduction to frequency standards and clocks, including atomic clocks and primary frequency standards, quartz oscillators, and other standards

    介紹頻率標準和時,包括原子、一等頻率標準,石英振蕩器和其他標準。
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