有效密度范圍 的英文怎麼說

中文拼音 [yǒuxiàomìdùfànwéi]
有效密度范圍 英文
useful density range
  • 有 : 有副詞[書面語] （表示整數之外再加零數）: 30 有 5 thirty-five; 10 有 5年 fifteen years
  • 效 : Ⅰ名詞（效果; 功用） effect; efficiency; result Ⅱ動詞1 （仿效） imitate; follow the example of 2 ...
  • 密 : Ⅰ名詞1 （秘密） secret 2 [紡織] （密度） density 3 （姓氏） a surname Ⅱ形容詞1 （距離近; 空隙小）...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 范 : 名詞1 [書面語] （模子） pattern; mould; matrix 2 （模範; 榜樣） model; example 3 （范圍） boundar...
  • 圍 : Ⅰ動詞1 （四周攔擋起來 使裡外不通; 環繞） enclose; surround; corral 2 （繞; 裹） wrap Ⅱ名詞1 （四...
  • 有效 : effective; valid; efficacious
  • 范圍 : scope; limits; extent; boundary; confines; range; range dimension; spectrum
  1. In this paper, based on land use maps of 1976, 1988, 2003, which were interpreted from the landsat mss / tm / etm imageries, and the map of main road, with the buffer analysis tool in arcgis 8, we studied the land use and land cover change on the two sides of the main roads in xishuangbanna, then we studied the impact of population density and the topographic factor on road effects. during the study both the comprehensive land use dynamic degree model and the land use degree comprehensive index model are taken into account, we put forward a compensatory model ? “ amendatory comprehensive land use dynamic degree model ”

    由於人類活動干擾強度加大，公路效應深度不斷擴展， 1976年為5km ， 1988年為7km ， 2003年達到11km ;受自然、社會條件的影響，不同路段的公路效應存在較大差異，甚至同一路段兩側效應也各不相同。 1976年至2003年，距公路不同距離范圍內的人口密度都在增加，且距離公路越近，人口數量密度越大、增長越快，人口分布有向公路兩側聚集的趨勢。選取人口密度為大、中、小三個樣區分別分析公路效應的范圍表明，人口密度
  2. For amf contact structure, raising axial magnetic field density is an effective way to raise breaking current density in certain range

    對于縱向磁場結構，在一定范圍內提高其縱向磁感應強度是提高其電流開斷密度的有效途徑。
  3. Based on the test results of dynamic consolidation for the foundation of actual project, the influence of dynamic consolidation on soil ? s density, compressibility, collapsibility and so on is analyzed, and the project effect of dynamic consolidation on collapsible loess foundation is approached. at the same time, the effective influence depth is researched. lastly, the common calculation formulus of influence depth at home and abroad are assessed, and the quantitative range of influence coefficient for loess area in the western region of guanzhong is given

    根據實際工程地基強夯處理的試驗資料，分析了強夯對土體密度、壓縮性、濕陷性等性質的影響，探討了強夯法處理濕陷性黃土地基的工程效果及有效影響深度，評價了目前國內外幾種常用的影響深度計算公式的適應性，提出了適用於關中西部黃土地區的影響系數及其定量取值范圍。
  4. Blue laser is very valuable for military, communication, high - density optical storage, information, colorful display of laser % colorful printing and biochemistry. for example, blue laser of 475nm can be used for seabed research and communication of submarine

    藍色激光器在軍事、通訊、信息業、彩色列印、高密度光存儲、激光顯示及生物化學方面有著重要的應用價值，比如說海水的透射窗口落在藍綠色激光范圍內，俗稱「海軍藍」的475nm藍色激光器可成為海地探測和對潛通信的有效手段。
  5. Both of the two ways can reach fb5b standard of tdk company. the coercive force of strontium permagnetferrite can be improved when a12o3 or cr2o3 was added to caco3 - sio2 or caco3 - hbo3 multi - additives. ( 4 ) comparing with normal caco3 and sio2, the nano caco3 and sio2 improve the magnetic. for the nano caco3 and sio2 have high chemical activations and excellent distribution, the density of permagnetferrite can be improved and the sinter temperature of it can be reduced

    納米caco _ 3 、 sio _ 2與普通caco _ 3 、 sio _ 2加入相比，鍶鐵氧體永磁獲得的最佳磁性能高，獲得最佳磁性能的添加量范圍變寬，即納米caco _ 3 、 sio _ 2提高了磁性能的穩定性，有利於大生產時鍶鐵氧體永磁的磁性能的穩定，對生產有重要的指導四川大學碩士論文意義;由於納米caco3 、 510 :分佈更均勻，具有高的化學活性，降低了銘鐵氧體永磁的最佳燒結溫度，提高了銘鐵氧體永磁的燒結密度，因而增大了caco3 、 510 :添加劑對銘鐵氧體永磁的改性效果。
  6. With each grating, you consider its groove density ( which helps determine the resolution ), its spectral range ( which helps determine the wavelength range ) and its blaze wavelength ( which helps determine the most efficient range )

    對每個光柵都要考慮其條紋密度（有助於確定解析度） 、光譜覆蓋范圍（有助於確定波長范圍）以及閃耀波長（有助於確定最佳效率范圍） 。
  7. The results show that : in the 2 - 4m of road buffer zones and 0 - 10m of infrastrctuer buffer zones, the density of dominant species and biomass will decrease for herbs, and abundance and proportion will get bigger than other exents ( inner species increasing owing to the outer species invading ) ; in the shrub disturbence extent, there exists an inverse relationship between the influence degrees and buffer zones ; in the 40m of infrastructure buffer zones, there has the biggest influence on the trees, however, the effect of road buffer zones is unobvious, only a small change on the morphology

    結果表明，草本類，游道影響源干擾區在2 4m ，設施類在0 10m ，原有優勢種密度減小，物種豐度較其它干擾范圍內有所增加（外部種入侵導致本地植物的種類數目增多） ，均勻度也增大，生物量減少；灌木類，在干擾范圍內，影響程度與影響源的距離成負相關關系；喬木類，接近設施類40m處影響最大，游道類影響源則影響效果不明顯，只有形態上略有變化。
  8. From above analysis, the thesis gets conclusions as following : ( 1 ) the frequencies of multi - tower building are so dense and the coupling in each mode is so evident that the cqc method instead of srss should be used to calculate the seismic action effect ; ( 2 ) torsion effects is distinct between the modes of asymmetry multi - tower structure and it is necessary to take translation - torsion coupling into account ; ( 3 ) the effect of the enlarged base rigid on the seismic properties is very big, the rigid ratio of the enlarged base to towers in asymmetry multi - tower structure should be designed in a proper range ; ( 4 ) the distribution of plane rigid is asymmetry because of the asymmetry layout of towers. the torsion effects of structure not only result in large torsion internal force in vertical element resisting lateral displacement, but also make large influences on the stress of transfer plate and near floors, thus it is necessary to strengthen those floors

    通過上述分析，得出以下主要結論：多塔樓結構存在頻率密集現象，各振型間耦聯效應明顯，地震作用計算應採用cqc組合原則而不能簡單地採用srss組合原則；非對稱多塔結構的振型中，扭轉作用明顯，平扭耦聯效應值得考慮；裙樓剛度對整體結構的抗震性能影響很大，非對稱多塔結構宜控制裙樓與塔樓剛度比在適宜的范圍；非對稱多塔易導致平面剛度分佈不均勻，結構扭轉效應不僅在豎向抗側構件中引起較大的扭轉內力，對轉換層樓板應力有較大的影響，且延續至相鄰樓層，對相應樓層均應採取相應的加強措施。
  9. Measurement and characterization of surface texture is an important aspect of precision metrology. historically this has involved partitioning a profile into different wavelength regimes referred to as roughness, waviness and form followed by numerical quantization. parameters computed are then inspected for tolerance compliance to ensure a part performs its intended function. this approach is satisfactory when the specification has been carefully determined and the process is stable. however, when the manufacturing process is under development or when instability or modifications to the process invalidate specifications, there is a need to study surface finish parameters in relation to functional performance or process measures. in this context, the problem of surface texture classification and recognition are discussed. advanced techniques developed for this purpose along with applications are presented. also, the techniques discussed here will be useful across large bandwidth, from the characterization of nano scale to traditional micro scale surfaces

    表面結構的測量與特徵描述是精密計量技術的一個重要方面，傳統上包括將輪廓情況根據不同的波長范圍劃分為粗糙度、波紋度和形狀及后續的數字量化.按算得的參數檢查它是否為公差允許，以保證零件執行其指定的功能.當技術特性已經經過仔細確定，並且其過程穩定時，該方法是令人滿意的;但是，當製造過程正在進行中或過程的不穩定、過程變化使技術特性失效時，就需要研究和功能表現及過程評定相關的表面參數.討論了表面結構的分類與識別問題.同時闡述了為此目的而開發的先進技術及其應用.所研究的技術對從納米尺度到傳統的微米尺度的較大帶寬范圍內的表面特徵描述都是有效的
  10. Therefore developing the environment simulation hermetic cabin that the stress, temperature, humidity, oxygen, carbon dioxide, vibration and noise etc can be adjusted, research many kinds of synthetically influences of multi - variable environment to the physiology function of animal such as single variable and the stress, temperature, humidity, oxygen, vibration and noise etc and its harm, looks for out the regularity of its influence to reach and probably gives rise to the critical scope of damage to the human body physiology function, and then but the measure of environment variable which sought actively to prevent and control inside the hermetic cabin looks has the meaning very much

    因此，研製壓力、溫度、濕度、含氧量、振動和噪聲等可調節的環境模擬密封艙，深入研究單一變量和壓力、溫度、濕度、含氧量、振動和噪聲等多種變量環境對動物的生理功能的綜合影響及其危害，找出其影響的規律性及可能對人體生理功能產生損害的臨界范圍，進而尋求有效的預防和控制密封艙內部的環境變量的措施則顯得非常有意義。
  11. Abstract : to against the fact of the commercial available white noise generators are very expensive which is not good for general operations, a simple and effective limited band white noise generator is design. the generator is using the feature of dual polarity transistor, i. e., the power spectrurn density of particulate noise is not related to frequency in very wide band and close to white noise. the concrete circuit is also given

    文摘:針對市售白噪聲發生器價格昂貴，不利於一般場合使用的問題，介紹利用雙極性晶體管散粒噪聲功率譜密度在非常寬的范圍內與頻率無關，屬白噪聲這一特性，設計了一種簡捷、有效的限帶白噪聲發生器，並給出了具體電路。
  12. Laser doppler velocimeter ( ldv ) is a precise instrument based on the theory of laser doppler effect with no - touch measurement capability, quick responsibility, high precision, wide measurement range, multiple dimension measurement and direction judgement ability. ldv is applied extensively in the field of science research & education and industrial measurement. in this thesis, we researched on the high - precise signal processing in ldv

    激光多普勒測速儀（ ldv ）是根據激光多普勒效應研製而成的一種精密測速儀器，具有非接觸測量、動態響應快、分析精度高、測量范圍寬、可測多維速度和判別速度方向等優點，被廣泛應用於科研教育領域和工業測量領域。
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