useful range 中文意思是什麼

useful range 解釋
有效測量范圍
  • useful : adj. 1. 有用的，有益的，有效的，有幫助的。2. 〈俚語〉值得稱贊的，精通…的 （at）。adv. -ly ,-ness n.
  • range : vt 1 排列；整理（頭發等）。2 使歸類[班、行、隊]；把…分類。3 〈用被動形或反身形〉加入，站住…的一邊...
  1. And understanding and studying the spectral features and variation rules of geo - targets in the experimental area, raising that it is the basis of geo - targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo - targets, realizing that in a great extent spectral - integrated - form - based classification method can remove the phenomenon of " different spectrum with same objects " resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo - target with similar spectral forms and much different values of whole reflection ratio. it is suggested that " red edge " range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel - based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. the remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed

    研究結果如下：首先針對荒漠化地區的地物特徵，對高光譜數據不同波段的數據質量、波段組合進行了評價，提出了適用於荒漠化監測的基本波段選擇集；初步了解和掌握了研究地區的地物光譜特性及變異規律，進一步明確了掌握地物光譜特徵和變異規律是用成像光譜儀數據提取地物信息的基礎；發現了基於光譜整體形狀的分類方法在很大程度上能夠消除由於傳感器、地物目標觀測方向之間的角度變化引起的反射率曲線整體平移的「同物異譜」現象，對于譜形相似而整體反射率的值相差較大的兩類地物，通過引入均值和方差圖像參與分類得到解決；研究還表明在植被「紅邊」范圍內的波段是進行荒漠化監測的主要特徵波段，這些波段與植被生物量和蓋度都有密切的關系，是開展精細植被分類研究和植被定量反演的重要基礎；像元的導數光譜分析可以消除土壤背景的影響，是進行植被生物量和蓋度定量反演的有力工具；建立了荒漠化監測主要評價因子的定量反演模型，並分析了模型的適用性。
  2. Range estimates from the foretop would not have been very useful at that time, especially given the decimated gun crews and difficulties relaying data. ( flags were probably used from the foretop to the gun )

    這種測距方式並不精準，特別是在船身劇烈搖晃或者是火炮煙硝阻礙觀測視線的時候。 ）
  3. The active range of motion ( arom ) of each finger joints is a useful tool for assessing finger performance

    摘要在探討病患因手外傷或類風濕性關節炎後手功能的恢復，最常使用的就是關節主動活動度的測量。
  4. Abstract : a new clock - driven eco placement algorithm is presented for standard - cell layout design based on the table - lookup delay model. it considers useful clock skew information in the placement stage. it also modifies the positions of cells locally to make better preparation for the clock routing. experimental results show that with little influence to other circuit performance, the algorithm can improve permissible skew range distribution evidently

    文摘:提出了一種新的時鐘性能驅動的增量式布局演算法，它針對目前工業界較為流行的標準單元布局，應用查找表模型來計算延遲.由於在布局階段較早地考慮到時鐘信息，可以通過調整單元位置，更有利於后續的有用偏差時鐘布線和偏差優化問題.來自於工業界的測試用例結果表明，該演算法可以有效地改善合理偏差范圍的分佈，而對電路的其它性能影響很小
  5. The globus toolkit has been developed since the late 1990s to support the development of service - oriented distributed computing applications and infrastructures. core gt components address, within a common framework, fundamental issues relating to security, resource access, resource management, data movement, resource discovery, and so forth. these components enable a broader " globus ecosystem " of tools and components that build on, or interoperate with, gt functionality to provide a wide range of useful application - level functions

    Gt globus toolkit是面向服務的分散式計算應用和基礎設施的開發工具，它以上世紀九十年代以來的許多分散式系統和技術為基礎，其中較有影響的是過去十幾年的metacomputing ， legion和i - way等創新項目，以及當前的web service ，虛擬機和peer - to - peer架構等技術。
  6. In a word, the system break the control limit of traditional class teaching, it inseparable relative with class teaching, out of class reply and so many link, it really embody the teaching guide principle depend on student, it provide an advanced teaching environment based on internet for wide users, it also provide new thought and pragmatic long - range teaching terrace for teaching reform, its study achievement is useful for further going on with teaching reform

    以方便用戶操作和使用。總之，系統賣破了傳統澡堂敦學的控制界限，將課堂教學、課外答疑等各個環節緊密地聯系起來，真正體現了以學生為主體約敦學方針，為廣大用戶提供了一個基於網際網路的先進的教學環境，為教學改革提供了新的思路和實用的遠程教學平臺，其研究成果有助於教學改革的深入進行。
  7. Supported by the broad range of state - of - the - art equipment and rich expertise, i am sure that the school of medicine will yield significant and useful research results in chinese medicine for the benefit of the community in the years to come

    中醫藥學院設備精良，人材濟濟，在未來的歲月里，定可在中醫藥的研究取得重大和優良的成果，造福社群。
  8. " in reality the " sparse " data in the lower extreme of any 8 - bit non - linear space considerably limits its useful range.

    "實際上"稀稀落落的"資料在任一8位非線性空間更低的極端可觀地限制它有用的?圍。
  9. Gamma values outside the usual range may be useful for old crt monitors or for monitors that are in unusual lighting conditions, such as industrial environments or window displays

    正常范圍以外的伽瑪值可用於舊式crt監視器，或者用於處于非一般照明條件（例如工業環境或櫥窗陳設）下的監視器。
  10. This charged fiber can be directed or accelerated by electrical forces and then collected in mats or other useful geometrical forms. the diameters of electrospun fibers are in the range of tens of nanometers to several micrometers. in this paper, polyacrylonitrile ( pan ) nanofibers are made by electrospinning pan / dimethylformamide ( dmf ) and pan / dimethylacetamide ( dmac ) with adjusting the main process parameters including electrostatic voltage ( 20 ~ 50kv ), sprinkler aperture ( 0. 5 ~ 0. 8mm ), collection distance ( 15 ~ 25cm ), solution concentration ( 6 wt % - 14 wt % )

    本文主要對聚丙烯腈（ pan ）二甲基甲酰胺（ dmf ） 、 pan二甲基已酰胺（ dmac ）體系進行電紡絲，調節靜電壓（ 20 50kv ） 、噴頭孔徑（ 0 . 5 0 . 8mm ） 、接收距離（ 15 25cm ） 、溶液濃度（ 6wt 14wt ）等過程參數，制得pan納米纖維，纖維平均直徑在200 1000nm ；詳細分析了過程參數對纖維細度、形態等的影響，認為高聚物溶液濃度及靜電壓對纖維細度有決定性影響，其它過程參數如接收距離、噴射孔徑、紡絲溶液溫度、溶液電導率等的調整應以這兩參數為基礎進行。
  11. Nylon is predominantly used past the useful pressure range of tfe because of its ability to resist permanent deformation ( or creep ), and recovery after load

    在tfe有效壓力范圍內，尼龍以前被廣泛的使用，因為尼龍具有抗永久性變形（或蠕變）的能力，並且在負載后能夠自行恢復。
  12. To overcome the second, the transmission needs to include a gearbox providing a range of different ratios of input to output speed, enabling the engine ' s speed to be maintained within the useful range of torque output over a more or less wide range of vehicle speeds

    對于第二個問題，可利用變速箱來安排不同的輸入輸出比，使發動機保持一定的轉速，以便提供保持車輛速度的有效扭矩輸出。
  13. The nucleon dbhf self - energy in the nuclear medium, therefore, can be calculated with the g matrix in the relativistic hartree - fock approximation. with the calculated nucleon self - energy in the dbhf, we extract nucleon effective interactions hi the framework of the relativistic mean field theory ( rmf ), which contains the effect of the nucleon - nucleon short - range correlation and information of the isospin structure. applying the effective interaction, which is composed of density dependent meson - nucleon coupling constants, we study the properties of finite nuclei and come to some useful conclusions

    本文應用相對論dirac - brueckner - hartree - fock （ dbhf ）方法，利用新的g矩陣分解方式g = v + g ，用g矩陣在相對論hartree - fock近似下，即等效的dbhf方法，系統地討論了對稱、不對稱核物質及中子物質的性質，利用對稱及不對稱核物質中自能的dirac結構，我們提取出含有核子-核子短程關聯效應和同位旋結構信息的有效相互作用介子耦合常數，並對有限核的性質做了詳細的討論，得到不少有意義的結果。
  14. The laser beam spot evolution and electron density in the guiding range are evaluated with the burn pattern and the measured conductivity. the above results will be useful in ultrashort laser pulse amplification and future research in ultrashort intense laser propagation in plasmas and ionizing gases

    以上研究結果對于超短脈沖激光放大技術研究以及超短超強脈沖激光在低密度等離子體和空氣中長距離傳輸和聚焦研究等具有重要的實用參考價值。
  15. The issa core curriculum for personal trainers covers the broadest range of useful topics including anatomy, physiology, kinesiology, nutrition, supplementation, personalized diet and exercise programming, flexibility techniques, and sports medicine for the fitness professional

    Issa給教練提供最廣泛和實用的私教課程，其中包括解剖學、生理學、運動機能學、營養學、營養補充、個人膳食和訓練計劃、柔韌技能和體育醫學等相關內容。
  16. The protein addresses the research need for a red - shifted fluorescent protein and will be an extremely useful tool for tracking and quantifying biological entities in the fields of biochemistry, biotechnology, molecular biology, cell biology and medical diagnosis complementing fluorescent proteins from other sources currently employed. professor wan said " it is gratifying to know that our discovery will be made widely available through stratagene s range of fluorescent protein products

    這種螢光蛋白不但有助於科學界深入對光譜紅移螢光蛋白的研究，而且在少數已知有輔助用途的螢光蛋白外，提供了一種能追蹤及量度生化物學的極為有用工具，能廣泛應用於生物化學、生物科技、分子生物學、細胞生物學和醫療診斷等范疇。
  17. He has the kind of speed that is extremely useful - - i wonder if anyone can get from the pick at the three - point line to layup range faster

    他擁有十分實用的速度? ?我想知道聯盟中是否有人能比他更快的從三分線來到上籃區域。
  18. Forth, this thesis also had made a preliminary discussion on the integrated guidance system of air - to - air missile beyond visual range air combat and made deep research on the midcourse guidance stage, thus we obtained an extremely useful conclusion.

    本文還對空空導彈超視距攻擊的復合制導體製做了一個初步的探討，並對其中的中制導階段進行了深入研究，得到了一個十分有用的結論:即中制導階段導彈發動機的最優推力方向實際上應該是關于時間的線性函數。
  19. Permitted useful temperature range

    允許使用溫度范圍
  20. Instead of storing negative numbers however they only store positive values, yielding a useful range of 0 to 65, 535 ( 2 ^ 16 ) - 1 )

    它將用於儲存負數的空間用來儲存正數，因此，它們能儲存0到65 ， 535的正值。
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