衰減標準 的英文怎麼說

中文拼音 [shuāijiǎnbiāozhǔn]
衰減標準 英文
attenuation criterion
  • 衰 : 衰動詞（衰弱） decline; wane
  • 標 : Ⅰ名詞1 [書面語] （樹梢） treetop; the tip of a tree2 （枝節或表面） symptom; outside appearance; ...
  • 準 : Ⅰ名詞1 （標準） standard; guideline; criterion; norm 2 （目標） aim; target Ⅱ動詞1 （依據; 依照）...
  • 衰減 : attenuation; decay; damping; reduction; rejection; weakening; deamplification; dampening; dying o...
  • 標準 : （衡量事物的準則; 榜樣; 規范） standard; criterion; benchmark; pip; rule; ètalon （衡器）; merits
  1. Verification regulation of standard attenuators for laser

    激光標準衰減器檢定規程
  2. The investigation of a lot of parameters about treated sandstone, brick materials and earthen materials with fluorited polymers has been carried out, such as the formation of polymer, the penetration depth, porosity, capillary absorption and penetration coefficient, water uptake, compressive strength, drilling resistance, absorption isotherms of water vapor, water vapor diffusion, color changes as well as resistance to desegregation of water, frizzing - throwing cycles, worming - cooling cycles, and so on. in addition, the influence of salt crystallization, acid and base, and uv aging have also been assessed in order to better understand the protection effects and utilization possibility of two fluorinated polymers, mainly according to astm standard and the combination of international methods together with general technological

    分別以國家級文物保護單位的土質、砂巖和磚材文物樣品為對象，依據astm標準及國際通用文物保護研究方法與評估準則相結合，通過膠化物形成周期、滲透深度、孔隙度、毛細吸水和滲透系數、持水量、抗壓強度、抗鉆強度、吸附水蒸氣的能力、透氣性、外觀顏色等系列參數的測定，及凍融、冷熱循環、酸堿腐蝕后抗壓強度的衰減、可溶鹽對保護效果的影響、酸堿及光照對表面保護效果的影響，對兩種含氟聚合物及其與有機硅的共混物在文物加固保護和表面防護中的可行性和保護效果給予了系統研究。
  3. The product is produced according to general standard. as inoculant alloy in cast iron, deoxidizer in steel - smelting, the product is used widely in steel industry. it has unique and special function on a long time of anti - declining, reducing gasholes of cast material and improving processing function

    以硅為基礎的硅鍶合金按通用標準生產，作為高牌號灰鑄鐵的孕育劑，煉鋼中的脫氧劑，合金劑而廣泛應用於鋼鐵工業之中，作為孕育劑在抗衰退時間長，減白口能力強，減少鑄件氣孔，改善加工性能方面均有著獨特的作用。
  4. 53 maize standard samples diffuse reflectance spectra were collected from 4000cm - 1 ~ 10000cm - 1 at 8 cm - 1 resolution on perkin - elmer spectrum one nts near - infrared instrument at different energy level. 3 samples were scanned 10 times repeatedly at 100 %, 76 % and 34 % energy level for energy variance analysis

    結果表明，隨著儀器能量降低，模型相對標準偏差（ rsd ）有增大趨勢，儀器相對能量從100衰減到18后，模型預測值rsd從2 . 5增至4 . 72 。
  5. Commercial building telecommunications cabling standard - part 1 : general requirements - addendum 3 - supportable distances and channel attenuation for optical fiber applications by fiber type

    商用建築電信電纜敷設標準.第1部分:一般要求.補充件3 .根據纖維類型決定的光纖設備的可支持距離和通道衰減
  6. The calibration of a spectrum analyser normally includes checks on frequency accuracy, level flatness, level linearity, input attenuation and calibration reference output

    頻譜分析器的校正工作一般包括檢查頻率準確度、功率電平不平坦度、標度線性、輸入衰減及參考輸出值的校正。
  7. Laboratory measurement of the reduction of transmitted tapping machine impact sound by floor coverings on a solid standard floor

    用地板面料覆蓋標準固體地板的試驗室測量法測定攻絲機沖擊噪聲的衰減值
  8. Standard test method for measuring the interzone attenuation of open office components

    測量敞式辦公部件區間衰減的標準試驗方法
  9. To ensure the reliability of tracking the target, signal attenuation and boresight error must be predicted accurately

    要保證導彈跟蹤目標的準確性，必須預測在給定掃描角下的信號衰減和瞄準誤差。
  10. 5. standard h2 / h and robust h2 / h mixed control problems are systematically analyzed by the method of linear matrix inequation. design method of the optimum guaranteed performance control rule as well as the one which satisfies the given disturbance attenuation degree and performance constraints are discussed 6

    運用線性矩陣不等式方法，系統分析了標準h _ 2 h _混合控制問題及魯棒h _ 2 h _混合控制問題，探討了滿足給定的擾動衰減度和性能約束的保性能控制律及最優保性能控制律的設計方法。
  11. Standard test method for determination of decay rates for use in sound insulation test methods

    隔聲試驗方法中衰減率測定的標準試驗方法
  12. Standard test method for airborne sound attenuation between rooms sharing a common ceiling plenum

    共用一個天花板中通風系統的房間之間氣載噪聲衰減率的標準測試方法
  13. The second chapter is about model experiment study, it introduces purpose, scheme, equipment and experiment contents having copperplate and copper ball as object by comparability rule experimenting plenty of physical models, deals with experiment data and makes second field attenuation voltage curves first field isoline both single aperture and mutli - aperture in different situation. in the end, it obtains best depth of multi - aperture source

    利用相似性準則進行大量的物理模擬實驗，實驗觀測中以銅板和銅球作為目標體，詳細介紹了模擬實驗研究的目的、方案、使用設備以及實驗內容，並對實驗數據進行了處理分析，作出了不同模擬條件下單、多孔徑的二次場衰減電壓曲線和一次場等值線圖，找出多孔徑作發射源的探測最佳深度。
  14. The analytic specific attenuation model for rain for use in prediction methods are developed, the specific rain attenuations calculated by the analytic model are in high agreement with those by the parameters tabulated in itu - r model, this model has presented to itu - r as a proposed revision to current itu - r model

    基於itu - r特徵雨衰減模式的列表參數，提出了特徵雨衰減的解析模式，該模式計算的特徵雨衰減與itu - r模式列表參數計算結果間有很好的一致性，並提交itu - r作為國際標準審議。
  15. Standard practice for the measurement of the apparent attenuation of longitudinal ultrasonic waves by immersion method

    用浸漬法測量縱向超聲波的表面衰減的標準操作規程
  16. Standard guide for remediation of ground water by natural attenuation at petroleum release sites

    在石油釋放場所根據自然衰減進行地下水補救的標準指南
  17. The general attenuation law of ground vibration caused by heavy tamping is verified by spectrum analysis in this paper. moreover, the relationship between attenuation index and standard penetration number is created through combination analysis of vibration attenuation and surface wave propagation

    在此基礎上，通過面波分析，得出了場地介質衰減指數和表徵場地介質性質的參數?標準貫入擊數之間的關系，給出了表達式的一般形式。
  18. Verification regulation of calibrating attenuator by 1 - 2 type attenuation standard equipment

    用1 - 2型衰減標準裝置檢定衰減器檢定規程
  19. Standard test method for measurement of ultrasonic attenuation coefficients of advanced ceramics by pulse - echo contact technique

    用脈沖反射接觸技術測量高級陶瓷超聲衰減系數的標準試驗方法
  20. Firstly, an estimation algorithm for spectrum of the ct system is presented in the paper by using a standard cylinder or wedge phantom, where the mass attenuation coefficient of the contained material of the phantom is not necessarily to be known

    本文首先給出了由標準均勻圓柱狀模體或楔狀模體估計ct系統的x射線能譜的演算法，該演算法不必已知構成模體的物質關于不同能量的光子的質量衰減系數。
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