較差測量 的英文怎麼說

中文拼音 [jiàochācèliáng]
較差測量 英文
differential measurement
  • 較 : Ⅰ動詞1 （比較） compare 2 [書面語] （計較） dispute Ⅱ副詞（比較） comparatively; relatively; fair...
  • 差 : 差Ⅰ名詞1 （不相同; 不相合） difference; dissimilarity 2 （差錯） mistake 3 [數學] （差數） differ...
  • 測 : 動詞1. （測量） survey; fathom; measure 2. （測度; 推測） conjecture; infer
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 測量 : measure; survey; gauge; meter; measurement; measuring; surveying; mensuration; metering; gauging;...
  1. They are jinfo mountain in nanchuan county ( natural protection section ), wuling mountain in qianjiang county ( national emphases forest demonstration county which forest cover rate is beyond 50 % ) and zhongliang mountain in beibei county ( artificial destruction is very grave ). some main land use patterns i. e. woodland, garden, infield, abandon infield, shrub and grassplot are selected in those three sample sites. four aspects on soil fertility index of karst environment under different land use patterns in these three sample sites, are revealed in this paper, by using the field test, indoor measure and analysis, outdoor experiment and field investigation, and the knowledge and technique of soil, ecology, physics and chemistry etc. they are physical characteristic ( effective soil thickness, organic layer thickness, soil texture, water - stable aggregate and soil water etc. ), chemical fertility ( organism, omni - n, omni - p, omni - k, alkali - nitrogen, available p, available k and rapid available k etc. ), soil animalcule ( bacteria, fungi, actinomyces and their grosses ) and soil - seed - pool ( plant community diversity index ) in karst ecosystem

    本研究以重慶市的南川金佛山（自然保護區） 、黔江武陵山（國家重點退耕還林示範縣，森林覆蓋率50以上）和北碚中梁山（遭人為破壞嚴重）典型巖溶區為對象，選擇了幾種重要的利用方式，包括林地、果園、耕地、棄耕地和灌草坡，採用野外巖溶生態調查和室內試驗測量分析相結合的方法，以不同土地利用方式巖溶土壤肥力為重點，對不同土地利用方式土壤肥力特徵進行量化分析，找出巖溶土壤肥力差異的主要方面及其根本原因，論文主要從土壤剖面物理退化指標（有效土層厚度、有機質層厚度、質地、團聚體、水分含量等） ，化學肥力退化指標（有機質、全n 、全p 、全k 、堿解n 、速效p和速效k等） ，樣地土壤微生物指標（細菌、真菌、放線菌數量及總量）以及樣地土壤種子庫植物群落多樣性等4個方面對重慶典型巖溶區的土壤肥力特徵進行了較為詳細的分析研究，為巖溶地區士壤資源的合理利用及結構的調控管理提供依據。
  2. The methods of direct measurement with low precision such as frequency and time interval methods and the methods of indirect measurement with high precision such as beat frequency method, dual mixer time difference method and frequency difference multiplying method are supported on the platform. the fundamentals of each method are studied. the quantization error is analysed and the illustration is given for each method

    該平臺支持直接頻率和時差法兩種較低精度的測量方法以及雙混頻時差法、差拍頻率法和頻差倍增法高精度的簡接測量方法，本文研究了各種測量方法的原理，對各種測量方法的量化誤差作了分析，並給出具體的實例。
  3. The accuracy of 3 - d surface - shape measurement by phase - measuring profilometry ( pmp ) is greatly influenced, because the variation of environmental light leads to biggish error

    摘要在運用相位測量剖面術（ pmp ）對物體進行三維面形測量時，由於測量現場環境光強變化而引入較大誤差，嚴重影響測量精度。
  4. In my present study, changes in structure and function of all parts of non - leaf organs ( culms, paleae, lemmas, awns, and glumes ) were investigated during a series of developmental stages and in various cultivars. characterization of the culms of lodging - resistant wheat varieties lodging is a potential cause of yield reduction in cereal crops ( crook et al, 1994 )

    其中，比較分析了非葉器官葉綠體超微結構的差異，測量了非葉器官的放氧和低溫熒光等生理指標，嘗試從結構與功能相結合的角度，探討非葉器官在提高作物產量中所起的重要作用。
  5. Enterprises must compare with the best satisfaction value after receiving the index satisfaction at all levels, find out one ' s own advantage and disparity from it, implement and improve, about improve model question that input and output maximized in fact, enterprises are in a situation that the capital cost is certain, the rational input to each index of distribution, make customer satisfaction get the greatest improvement customer satisfaction test and assessment is a dynamic course, enterprises must also implement a lot of investigations, measure satisfaction value many times, in order to check the impro ved result, cany on essential adjustment, make the improvement scheme correspond to reality

    企業在得到各級指標滿意度之後，必須與最佳滿意度值比較，從中找出自己的優勢和差距，實施改進，關于改進模型實際上是投入產出最大化的問題，企業在投資額一定的情況下，合理的分配對各個指標的投入，使得顧客滿意度得到最大的提高。顧客滿意度測評是一個動態的過程，企業還必須實行多次調查，多次測量滿意度值，以檢查改進的效果，進行必要的調整，使得改進方案符合實際。
  6. Abstract : in fourier transform profilometry, because of the nonlinear relationship between the irradiant incident upon a ccd dete ctor andthe voltage it outputs, it will cause phase evaluation errors. here, we ex plain the errorsource by theoretical deducing, then make a simulation. at last, a method to decrease thiserror is put forward

    文摘:在傅里葉變換輪廓術中，由於ccd探測器光電響應的非線性，將在測量中引入高次項，從而對相位的求解造成較大誤差，通過理論的推導定性地解釋了誤差的來由，並用計算機進行了模擬計算，最後提出了減小誤差的方法。
  7. The other research purpose is to discover characteristic information and reliable methods of reflecting spinal cord damage. due to typical damage indicators, amplitude and latent period, have bugs such as limited information and weak stabilities, this project recommends applying time - frequency analysis to monitoring spinal cord function. through analysing and comparing typical signal with stft and cwt, it is proved indicators under time - frequency distribution can be better in reflecting signal changes, espcially the wavelet transformation

    針對目前ep監測中判定脊髓損傷的指標（波幅和潛伏期）存在信息量相對較小、穩定性較差的缺陷，本課題提出利用時頻分析技術對術中脊髓功能監護進行研究，通過短時傅立葉變換和小波變換分析和比較典型信號的時頻分佈，證明時頻特徵參數能更有效的提取信號的變化信息。
  8. ( 2 ) the correction results by the new and old methods are the same when the axis system deviation is small, while the monomial error accumulating totals correction method is practical only when the surveying angles and deviation are both small

    （ 2 ）當軸系偏差較小時，用新舊兩種方法修正結果一致。單項差累計改正法只適用於測量角和偏差都很小的情況。
  9. The experiment was conducted to determine the influence of different regulation and control methods of soil moisture, such as plastic film mulching, covering grass under trees, growing grass under trees, irrigating regularly, loosening the soil under trees, on quality of fruit in a non - public nuisance crisp pear garden in the area of old course of yellow river

    摘要以45年生酥梨樹為試材，分析測定塑料薄膜覆蓋、樹盤覆草、自然生草、定期灌水、清耕等不同土壤水分管理措施對土壤水分和酥梨品質的影響，結果表明：塑料薄膜覆蓋和樹盤覆草處理中，土壤含水率比較適宜，且變幅較小，有利於果實生長發育和提早著色，提早成熟，產量和品質較好；其它處理中土壤含水率要麼過高，要麼過低，且變幅較大，酥梨的果實品質也比較差。
  10. Abstract : in the paper, based on the problem that strong reactive background noise can bring about a big measurement error when sound power is measured in a narrow room, such as power room in a diesel locomotive, it is analyzed theoretically that sound power is measured and carried out by using sound intensity probe hood, and sound power of diesel engine surface noise is measured in a power room

    文摘:在狹小空間如內燃機車動力室的條件下，測量柴油機表面噪聲聲功率時，動力室內抗性背景聲很強引起較大的測量誤差，從理論上分析了採用聲強探頭罩進行聲功率測量的可行性，並進行了內燃機車柴油機表面噪聲的聲功率測量。
  11. This article has studied the deficiency and shortcoming of various kinds of methods of the parameter measurement of transmission line at present, proposed the measurement under operation on the basis of gps, researched gps application way and error that may appear in the power system synchronal sampling, put forward the parameter computing technology based on the information of both sides of transmission line, which solved some problems that exist in the parameter measurement, especially the problem that exist in the zero - sequence parameter measurement of transmission line with mutual inductance

    本文研究了目前輸電線路參數測量的各種方法，分析了其中存在的不足和缺點，提出了基於gps的輸電線路參數在線測量方法，研究分析了gps在電力系統同步采樣中的應用方式以及可能出現的誤差，在同步采樣的基礎上提出了基於雙端信息的線路參數計算方法，較好地解決了輸電線路參數測量中存在的一些問題，尤其是多回互感線路零序參數測量困難的問題。
  12. 4. the thrust measurement device was calibrated, and the accuracy was 2 % fs. at the same time the signal of thrust measurement was input to the computer. e - type chromel - constantan thermocouple was used to measure the temperature of mpt, and the accuracy was 5 % fs. the vacuum measurement was realized by using zdf - 5427m vacuometer, and the accuracy was 3 % fs

    （ 4 ）對推力測量系統進行了標定並實現了計算機採集，推力測量系統最大相對誤差為2 fs ；溫度測量目前還只限於對mpt諧振腔壁溫的測量，使用e型鎳鉻?康銅熱電偶即可較容易實現，其測量精度為5 fs ；真空測量採用zdf - 5427m微機型復合真空計，其由熱偶計和熱陰極電離計復合而成，該真空計測量控制精度為3 fs 。
  13. Thirdly, an ideal satellite orbit is simulated, and on this foundation, we establish some typical simulation and testing circumstances. lastly, after simulation in the simulation and testing circumstances, we compare the performance of ukf and ekf. and then, based on the outdoor experiment of the vehicle, an analysis and contrast between our simulation results and commercial data process software is carried out, and the conclusion is obtained

    首先在第三章提出的目標運動模型的基礎上建立了系統狀態方程;其次簡要分析了衛星導航系統中的各類誤差，建立了基於偽距觀測量的系統觀測模型;第四節利用yuma格式歷書數據模擬了未受攝動影響的衛星軌道，並在此基礎上建立了幾種典型的動態模擬測試環境;第五節為模擬分析和比較，先對ukf演算法和ekf演算法在動態模擬測試環境中進行了模擬比較，然後針對外場試驗，對非線性濾波獲得的定位結果與商業軟體進行了分析比較，並得出結論。
  14. According to the engineering practice, the theoretical basis and method that survey directly the horizontal distance and height difference by the total station system as fourth grade and below fourth grade control network are put forward instead of surveying slant distance and zenith distance

    摘要根據工程實踐，提出了用全站儀直接測量平距、高差來代替測斜距、天頂距作四等及四等以下控制網測量的理論依據和方法，並以張河灣抽水蓄能電站施工控制網為例進行了比較計算。
  15. Currently the measurement and correction of aberration is a focus points in the field of ophthalmology. the examination of wave - front aberration is a main method that is used to observe optical system of the human eye

    人眼波前像差測量與矯正是目前眼科領域的研究熱點之一，而波前像差測量是觀察人眼光學系統是否完備的一種比較全面的方法。
  16. Using the method of merging sample standard deviation and evaluating indeterminacy of category b to calculate the indeterminacy aroused by repetitiveness can obtain reliable standard indeterminacy in much less time tallied with the inspection procedure

    論述採用合併樣本標準差和b類不確定度評定方法計算重復性引起的不確定度，使可以在符合檢定規程規定的較少測量次數中得到比較可靠的標準不確定度。
  17. Energetic materials for defense. statistics and metrology. estimation of errors of a measuring device by comparison with another device

    國防用高能材料.統計學和計量學.通過與另一裝置比較對測量裝置誤差進行評估
  18. Broe gauges are used to measure internal hole dimensios and shape errors of different diameter and depth by comparative method

    內徑百分表適用於比較法測量不同直徑和深度和內孔尺寸及誤差。
  19. This paper, in terms of conception, logic and form, deeply and systematically analyses and researchs some important problems in the expression of error and uncertainty of measurement, and reterates the definition of error, result and uncertainty of measurement, coverage uncertainty may be used instead of expanded uncertainty, as well the opinion of fixed quality of error and fixed quantity of uncertainty of measurement, which the author once put

    對測量誤差與不確定度表述中的某些重要問題，從概念、邏輯和形式上進行了比較深入和系統的分析與研究，並重申了作者曾提出的關于測量誤差、測量結果與測量不確定度的定義；以「范圍」不確定度取代「擴展」 （展伸）不確定度；以及對測量誤差的「定性」與測量不確定度的「定量」等說法的見解。
  20. Abstract : this paper, in terms of conception, logic and form, deeply and systematically analyses and researchs some important problems in the expression of error and uncertainty of measurement, and reterates the definition of error, result and uncertainty of measurement, coverage uncertainty may be used instead of expanded uncertainty, as well the opinion of fixed quality of error and fixed quantity of uncertainty of measurement, which the author once put

    文摘:對測量誤差與不確定度表述中的某些重要問題，從概念、邏輯和形式上進行了比較深入和系統的分析與研究，並重申了作者曾提出的關于測量誤差、測量結果與測量不確定度的定義；以「范圍」不確定度取代「擴展」 （展伸）不確定度；以及對測量誤差的「定性」與測量不確定度的「定量」等說法的見解。
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