離中趨勢測量 的英文怎麼說

中文拼音 [lízhōngqūshìcèliáng]
離中趨勢測量 英文
measures of dispersion
  • 離 : Ⅰ動詞1 （離開） leave; part from; be away from; separate 2 （背離） go against 3 （缺少） dispens...
  • 趨 : 動詞1. （快走） hasten; hurry along 2. （向某個方向發展; 趨向） tend towards; tend to become
  • 勢 : 名詞1 （勢力） power; force; influence 2 （一切事物力量表現出來的趨向） momentum; tendency 3 （自...
  • 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
  • 趨勢 : trend; tendency; drift; current; tide
  • 測量 : measure; survey; gauge; meter; measurement; measuring; surveying; mensuration; metering; gauging;...
  1. According to the present problems and developing tendency of hydraulic turbine governor, four main issues of this field are studied in this paper. the content include hydraulic control system, frequency measurement unit, stability of the discrete control system, optimization of control parameters and self - adjusting pid control strategy based on fuzzy logic. several main achievement and results are obtained and shown as follows : the electric - hydraulic pilot valve driven by step - motor is firstly proposed, which solves the problem that the electric - hydraulic converter of hydraulic turbine governor hydraulic servo is prone to be stuck and blocked and improves the systemic stability greatly

    本文根據水輪機調節領域存在的問題和發展趨勢，對水輪機調速器的液壓控制系統、頻率測量環節、離散調節系統穩定性與調節參數最優整定以及適應式參數自調整pid控制策略進行了研究，得到以下主要成果和結論：首次提出了採用步進電機驅動的步進式電液引導閥，從根本上解決了水輪機調速器電液隨動系統中存在的電液轉換元件發卡、堵塞問題，使電液隨動系統的可靠性大大提高。
  2. Abstract : this paper introduces the history, actuality and trend of the cylindricity error both at home and abroad, analyzes and generalizes the correlative application in the homogeneous research

    文摘:介紹國內外圓柱度誤差測量的歷史、現狀，分析並概括了國內外同類課題研究中提出的誤差分離技術及其應用情況，最後提出了圓柱度誤差發展趨勢
  3. This paper discusses some problems in supersonic velocity measurement, and expounds, in the form of numerical computation, the availability results about supersonic energy attenuation adapting to distance, as well as the influential factors on the measurement

    摘要該文討論了超聲波聲速測量實驗中出現的幾個問題，並通過數值計算，說明了超聲波能量隨距離的增大而形成的衰減趨勢，並對影響測量精度的因素進行了討論。
  4. This system is a totally automatic measuring and analyzing system with wide measuring range ( from 10 - 16 to 10 - 2a ) and high precision ( 0. 2 % ) which is first developed in china. a 50 - loop current measurement and control system, and a micro - current automatically cycling measurement system together with its three - level protecting system are developed in this thesis. additionally, a software package for this measuring system of ion migration test is developed successfully

    在對新型絕緣子離子遷移試驗測量系統研製和開發的過程中，本文設計並研製出了50路電流測量控制系統，微電流自動循環測量系統及其三級保護系統；並成功地開發出一套離子遷移試驗測量系統的軟體系統，該軟體系統不但簡潔、易用，而且實現了採用軟體對多個硬體設備的同步、協調控制，以及通過軟體對多個（達100個） i / o節點的實時控制，另外，還實現了測量數據的自動存儲以及對累積電荷量大小和發展趨勢的自動分析功能等。
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