phase step 中文意思是什麼

phase step 解釋
相位階躍
  • phase : n 1 形勢，局面，狀態；階級。2 方面，側面。3 【天文學】（月等的）變相，盈虧；【物、天】相，周相，...
  • step : vi （ pp ）1 走；跨步。2 踩，踏上 （on）。3 跳舞，輕快地走，合著步調走。4 跨入，踏進。5 走上。vt ...
  1. The growth processes of liquid-phase epitaxy will be discussed in some detail, as crystal growth is a necessary step for the realization of integrated optics using.

    再略為詳細地討論液相外延生長過程，因為晶體生長是實現集成光路使用的必不可少的一個環節。
  2. Because color isochromatic fringes appear in the stress model based on a plane polariscope in white light, we studied the problems systematically by a digital camera as image inputting device, digital image processing technique and bp artificial neural network. based on the work that has been reported before, a technique named five - step color phase shifting technique ( fcpst ) to acquire single isoclinics is presented

    根據白光入射時應力模型在偏振儀光學系統中的等色線條紋是彩色的特點，本論文採用彩色數碼相機作為數據採集與輸入設備，結合彩色信息圖像處理和bp神經網路等新技術，對上述兩個難題進行了系統的研究，獲得以下成果：在綜合前人工作的基礎上，提出獲得全場單純的等傾角相圖的五步彩色相移法。
  3. Dds951 series electronic single - phase electric meter is the most advanced static electronic meter in china. the meter designs use large - scale intergated circuit. high reliability step motor, it can the ac single - phase active energv voltage rating : 220v : frequency 50hz, positive and negative two directions and accumulates in one direction. the test singnal is isolated by phototransistor : it also has the function of anti - fraud, and indicates it s operation situation on flash light, so it could be managed very easy

    Dds951單相電子電能表，是金雀儀表公司開發的新型電度表。該產品是採用規模專用集成電路，高可靠性步進電機等先進技術製造的國內最新電能試題新產品，用來計量額定電壓為220v ，頻率為50hz的交流單相有功電能，該產品能夠精確計量正負兩方向的有功電能，且以同一個方向累計。
  4. 1 1 chemical disinfectants and antiseptics - basic sporicidal activity - test method and requirements phase 1, step 1

    化學消毒劑和防腐劑.基本殺孢子活性.試驗方法和要求
  5. 2 1 chemical disinfectants - quantitative suspension test for the evaluation of sporicidal activity of chemical disinfectants used in food, industrial, domestic and institutional areas - test method and requirements phase 2, step 1

    化學消毒劑.食品工業家庭和研究領域用化學消毒劑的殺孢子活性評定用定量懸浮試驗.試驗方法和要求
  6. 2 2 chemical disinfectants and antiseptics - quantitative surface test for the evaluation of bacterial activity of chemical disinfectants and antiseptics used in the veterinary field on non - porous surfaces without mechanical action - test method and requirements phase 2, step 2

    化學消毒劑和防腐劑.獸醫領域無機械運動無孔表面用化學消毒劑和防腐劑的細菌活性評價用定量表面試驗.試驗方法和要求
  7. Two plasmids, which contain hbv specific dna fragment and hsv1 dna fragment, were amplified by solid phase two loci pcr and detected by enzymatic indicator system on a gene chip that was constructed by primer immobilization and modified with thiol group on chip surface. for building detection technology by dna chip in clinical, the virus genomes were extracted from the clinical positive samples by one - step nucleic acid extraction

    採用已建立的晶元制備方法，在該六種質粒中選擇含有hbv與hsv1兩種病毒dna序列的質粒為模板，進行同相兩重pcr ，採用晶元酶學槍測對固相兩重pcr的擴增結果進行檢測，得到良好的晶元酶學檢測結果。
  8. The hwtx - i gene was chemically synthesized according to its known cdna sequence, the gene was inserted into vector ppic9k which contained aoxj promotor and the sequence of a secreting signal peptide - a - factor, the cloning ppic9k / hwtx - i was constructed and confirmed by two - step pcr and dna sequence analysis, then it was transformed into host strain gs115, a his + muts cell line was screened and multicopy transformants were screened by various g418 concentrations, the multicopy transformant was named gh1. gh1 was cultivated in flasks. after 6 days of induction by 0. 5 % methanol, the supernatant was checked by 16. 5 % tricine - sds page, which showed there was a band in the position of 3. 5 - 6. 1kd, then it was isolated and desalted by ultrofiltration followed by ion exchange of cm column, after reverse phase hplc of ci8 and vacuum drying, the purified rhwtx - 1 was obtained which was proved to be correct recombinant hwtx - i by tricine sds - page, maldi - tof mass spectrometry, amino acid composition analysis, the n - terminal amino acid sequence and its biological activity, the final field of the purified rhwtx - i was about 80mg / l, accounting for 23. 6 % of it total secretory proteins

    將帶有hwtx -基因的ppic9k經blgii線性化后，轉化酵母宿主菌gs115原生質體后經篩選陽性克隆並經表型鑒定為his ~ + mut ~ s酵母菌，進一步用遺傳毒素g418篩選多拷貝的轉化菌株，命名為gh1 ；將gh1甲醇酵母菌用0 . 5的甲醇誘導表達，發酵上清經90飽和度的（ nh _ 4 ） _ 2so _ 4沉澱， yw - 3 （ mwc03000 ）的超濾膜超濾，再經cm陽離子交換， c _ （ 18 ）反相hplc純化得到分子量為4kd左右的組分，其中4289 . 05的組分經質譜鑒定，氨基酸組成分析和序列測定為正確的表達產物，生物學活性表明其活性為天然毒素活性70 % ，表達量為80mg / l 。
  9. Taking the vr step motor as example in the paper, systemic research is conducted about the principle of the subdividing drive, the non - linearity relationship between microstep and phase current, the method of velocity adjusting and the interrelated factors. the system is designed to realize the subdividing drive, velocity adjusting and position. especially, there are two innovations in this paper. one is the first introduction of pld device and isp technology to the design of phase sequencer, the other is the new measure and amend method of microstep

    本文以三相反應式步進電機為實例，對細分驅動原理、細分驅動的非線性、變細分調速以及相關影響因素進行系統的研究；實現細分驅動器、調速控制、定位控制和軟硬介面的設計。在此基礎上，本文對細分驅動環形分配器的設計和微步距測量修正進行了創新；提出將pld器件和isp技術引入到細分驅動環形分配器的設計思想和錯位測量和逼近修正法。
  10. 2, 1 chemical disinfectants and antiseptics - quantitative suspension test for the evaluation of virucidal activity of chemical disinfectants and antiseptics used in the veterinary field - test method and requirements phase 2, step 1

    化學消毒劑和防腐劑.評估獸醫用化學消毒劑和防腐劑的殺病毒劑活性的定量懸浮試驗.試驗方法和要求
  11. Either the boron nitride ( bn ) thin films with different cubic phase content were deposited on n - type si ( 111 ) and fused silica substrates by radio frequency ( rf ) sputtering using two - stage deposition process. the films were characterized by fourier transform infrared ( ftir ) spectroscopy. the transmittance te ( ) and reflectance re ( ) were obtained as a function of incident photo wavelengths and the thickness of films was measured by alpha - step. the absorption coefficient was calculated from te ( ) and re ( ). the optical band gap ( eg ) of the films was determined by effective medium form of formula containing eg

    本文還研究了立方相含量與光學帶隙的關系，在n型si （ 111 ）片和熔融石英片上沉積出不同體積分數的立方氮化硼薄膜，薄膜的成分由傅立葉紅外吸收譜標識；用紫外-可見分光光度計測量了沉積在石英片上的bn薄膜的透射光譜te （ ）和反射光譜re （ ） ，薄膜的厚度用臺階儀測得。
  12. Since commercial pll ic came out, phase - locked - loop frequency synthesis has become widely accepted. but when narrow frequency - step is required, the loop bandwidth has to decrease while cannot meet the demand of frequency - hopping speed

    數字鎖相集成器件出現以來，鎖相式頻率合成器得到迅速發展，但是當需要窄頻率步進時，環路帶寬需要降低，致使鎖定時間變長，不能滿足快速跳頻的要求。
  13. Impedance - matching balanced traction transformers ( balanced transformers in this paper for short ) are step - down transformers, they transfer symmetrical three phase voltage in primary side to perpendicular two phase voltage in secondary side. they are different from any other transformers, so their short - circuit current analysis and short - circuit test method must be taken into special account

    阻抗匹配平衡牽引變壓器（本文中簡稱平衡變壓器）是一種將一次側三相對稱電壓變換為二次側二相垂直電壓的降壓變壓器，它不同於已有的任何一種變壓器，短路電流的分析計算和短路試驗必須予以重新研究。
  14. Through analyzing the spinning echo, the arithmetic of " estimation of signal with polynomial phase " is adopted to estimate parameter of echo ' s phase. then the influence of high step phase pro duced by spin is removed. the one - dimension range - profile can be renewed by this arithmetic and the good effect is showed by the result of simulation in chapter v, the main works of this dissertation are summarized and the future researched areas are pointed out

    通過對自旋目標回波的分析，本章採用了「多項式相位信號系數估計」演算法對回波相位進行參數估計，可以去掉旋轉產生的相位高次項影響，從而恢復給出目標的一維距離像，模擬實驗表明本演算法取得了好的效果。
  15. There is difference frequency measurement requirement for every part of pid regulating, difference between dynamic quality and static quality in response time and accuracy. according to these, it use the interrupt functions and high - speed counter of the simens s7 - 200 plc cpu226 basic unit and some peripheral circuit to measure frequency ; in software designed, the procedure frame of hydraulic - turbine governor and disperse process of parallel pid are analyzed, an improved pid algorithm is adopted to realize a pid regulation mode with variable structure and parameters ; the mechanical liquid - pressure system of the hydraulic - turbine governor is with electric - hydraulic converter unit of step motor. according to the drive character of five phase of response step motor, a variable frequency regulated voltage driver unit is designed in order to realize interface between plc and driver of step motor

    本文利用s7 - 200plc自身的特點設計了頻率測量單元，根據pid調節各個環節的特點，以及調速器動態特性、靜態特性對頻率測量的實時性和精度要求的不同，利用s7 - 200plc基本單元中內置的高速計數器以及相應的外圍放大整形、分頻電路，實現了水輪發電機組頻率的測量；在軟體上，對微機調速器的整個程序框架、並聯pid的離散化過程進行了分析，選用改進的pid演算法實現了變參數、變結構的pid調節模式；調速器的機械液壓隨動系統具有步進電機電液轉換元件，採用五相反應式步進電機，根據其驅動特性設計了變頻調壓驅動器，實現plc與步進電機驅動器之間數字介面。
  16. 2 1 chemical disinfectants - quantitative suspension test for the evaluation of virucidal activity against bacteriophages of chemical disinfectants used in food and industrial areas - test method and requirements phase 2, step 1

    化學消毒劑.評價食品及工業領域用化學消毒劑對噬菌體的殺病毒能力用定量懸浮試驗.試驗方法和要求
  17. 2 1 chemical disinfectants and antiseptics - quantitative suspension test for the evaluation of bactericidal activity of chemical disinfectants used in veterinary field - test method and requirements phase 2 step 1

    化學消毒劑和防腐劑.用於獸醫領域的化學消毒劑的殺菌活性評價的數量懸浮試驗.試驗方法和要求
  18. 2 1 chemical disinfectants and antiseptics - quantitative suspension test for the evaluation of bactericidal activity of chemical disinfectants for instruments used in the medical area - test method and requirements phase 2 step 1

    化學消毒劑和防腐劑.醫療器械用化學消毒劑殺菌活性評價的定量懸浮試驗.試驗方法和要求
  19. The surface roughness of the fabricated micro - optics structure is in the nanometer range ; the feature height of the diffractive phase step is in the sub - micrometer range ; and can be adjusted according to requirements ; and the optical aperture of the microlens can be changed from millimeter to centimeter magnitude

    所制微光學結構的表面粗糙度在納米量級，衍射相位臺階的高度在亞微米量級並可以根據需求靈活調整，通光孔徑在毫米至厘米量級的范圍內可調。
  20. The design of excitation power source based on principle of three phase step motor and pulse width modulation ( pwm ) technology, intelligent power model ( ipm ) is used for inverter switches, the output ac pulse used as excitation signals. the speed of rotation and magnetic intensity can be changed by regulate the exciting converted frequency and magnitude of exciting current. constant current is achieved by closed loop feed back

    勵磁電源結合步進電機原理與脈寬調制技術，選用智能功率模塊ipm作為逆變開關器件，輸出交流脈沖勵磁信號，以調節勵磁轉換頻率和勵磁電流大小為手段，實現對磁場旋轉頻率和磁場強度大小的有效調節，並通過閉環反饋實現閉環恆流控制。
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