指向容差 的英文怎麼說
中文拼音 [zhǐxiàngróngchā]
指向容差
英文
pointing tolerance-
Of xml nodes ; a grove is a collection of trees in computer science terms, a directed acyclic graph, and xslt is an example of a host language for xpath that takes advantage of this distinction to allow xpath to process the contents of multiple source documents courtesy of the xslt
，林是樹（在計算機科學中指的是有向無環圖）的集合， xslt是一種xpath宿主語言，它利用了這一差別來允許xpath處理多個源文檔的內容（得益於xslt函數The great drive served by the rural educational system reform to the development of rural community education, and the existing problems of rural education as well as both the opportunities and challenges faced with the rural community education. chapterlv. this chapter offers a comprehensive analysis of the current situation and existing problems of china ' s rural community education
首先，闡述了農村教育理念的變革、現代農村社區教育思想的發展以及農村社區教育的興起與發展;其次，從教育目標與內容、類型與特點、組織機構與管理保障等方面，對目前農村社區教育的發展現狀進行了比較全面的分析，同時分析了農村社區教育的區域差異及基本經驗;最後，指出了農村社區教育面臨的問題，並對農村社區教育發展走向進行了分析。On the foundation of making deep investigations in the current medium - sized rvte of hubei, the author have pointed out the leading problems and deficiencies existing in medium - sized rvte of hubei at present. mainly showing in the following aspects : enrollment drops, it is difficult for the rvte to enroll new student ' s ; the funds are put into insufficiently, the condition for running a school is bad, teaching is of low quality ; the overall arrangement of the education structure is unreasonable, the area of the system is developed unevenly ; professional structure and course offered do n ' t meet the needs of rural economy development in new century ; the training objective is unreasonable and indifferent for the agricultural service, the content of courses is outmoded, the teaching form is single, and the link breaks away from the real agricultural production ; rural vocation education mechanism is not flexible, the ability is not cogent that run a school towards the society, . the efficiency in school management is not high
作者在深入調查研究湖北省農村中等職業技術教育現狀的基礎上，指出了當前我國農村職業技術教育存在的主要問題和不足之處，這些問題和不足之處突出地表現在：招生人數下跌、農村中等職業學校出現了招生難；經費投入不足，辦學條件差，教學質量不高；結構布局不合理，區域發展不平衡；在專業結構及課程設置上不適應新世紀農村經濟發展的需要；培養目標定位不合理，教學內容陳舊，教學形式單一，教學環節脫離農業生產實際，為農服務能力不強；農村職校教育機制不靈活，面向社會辦學力度不大，辦學效益不高，辦學活力不強。In order to make the sensitivity of 2 - demension accelerometer along the two main arbors almost identical, symmetric four - beam structure that embeds a double - sides interdigitated differential capacitive with puckered beam in two directions was used as sensitive component. in addition, the differential capacitive accelerometer fabricated by bulky silicon micromechanical technique has high sensitivity, wide measurement scope, less nonlinear error, and simple converting circuit. then, the structure parameters of the sensitive component were calculated and stimulated, which results in a set of the optimized structure design parameters, main fabrication procedure and several key fabrication technology
為使二維振動傳感器在兩主軸方向的靈敏度大致相同，敏感元件採用高度對稱的四梁結構，其中每個軸向上均採用帶折疊梁的雙側叉指電容結構，採用體硅微機械工藝製作的高深寬比叉指電容式敏感元件，具有高靈敏度、寬量程、非線性誤差小、外圍電路簡單等優點;對設計的敏感元件結構參數進行了計算，並利用有限元法進行了模擬分析，根據模擬結果得出了優化參數;在確定敏感結構的基礎上，研究了敏感元件採用體硅微機械加工工藝製作的工藝流程和關鍵工藝技術;對敏感晶元內部的c - v介面電路進行了原理設計與分析，利用差動測量技術得到由振動引起的微小電容變化量，經c - v介面電路進行相位調制處理，然後通過解調輸出與加速度成正比的電壓信號。According to the analyses of the research results about the feasibility of 4 - d seismic and the successful 4 - d seismic cases of foreign companies, the author put forward the suggestions for 4 - d seismic pilot area selection ; briefly analyzed the influential function of producing way on the seismic response ; utilized theory calculation, coring data analyses, and reservoir numerical simulation to define the fluid substitution effects on the p - wave velocity. through long time water driven to the reservoir, some of the properties and the log curves have changed, the author tried to find the variation rule of the reservoir and its effects on seismic velocity. the " blind point " in 4 - d seismic feasibility study both in china and overseas was found, that is the lack of consideration of the influence of physical property variation by long time water driven on the seismic response
在深入分析國外四維地震可行性研究成果和成功實例的基礎上，提出了有利於水驅四維地震成功的工區優選條件；簡要剖析了各種開采方式及其對地震特性的影響；利用理論計算、巖心分析、油藏數值模擬三種方法確定了流體替代對縱波速度的影響；通過對長期水驅造成的物性參數、測井曲線以及油藏溫度和壓力變化規律的總結，分析了這些變化對地震速度的影響，指出了目前國內外水驅四維地震可行性研究中存在的盲區?沒有充分考慮長期注水造成的物性、溫度和壓力變化對地震響應的影響，完善了水驅四維地震可行性研究的內容；在考慮了這些變化因素后，高29斷塊水驅四維地震可行性研究結果表明：四維地震監測注水前沿可能要比監測油藏變化容易的多；以四維地震巖石物理可行性研究結果為基礎，提出了五個有助於突出四維地震造成的微小差異的途徑，為今後水驅四維地震研究指明了方向。分享友人