present speed 中文意思是什麼
present speed
解釋
現速-
And it can be divided into four phases of urban tourism of china, in which there are different characteristics. ( 2 ) the evolutive rules of urban tourism of china are as follows : 1 ) the exoteric extent of tourism notion is more and more swell ; 2 ) the form of urban tourism renovate with the development of cities ; 3 ) the layout of urban tourism inner and outer is from close and complanate to exoteric and tridimensional ; 4 ) the sustaining system of urban tourism is from absent to as clear as a bell, and will reach a rational and advanced extent. 5 ) the social delamination of urban tourism is form stern to syncretic ; 6 ) the evolvement tendency of urban tourism should be generalized as a curve of accumbent " s ", which present a course makes up of low - grade development, high - speed development and balanced development
主要觀點歸納如下： （ 1 ）城市旅遊是基於城市的發展而發展的，中國城市旅遊可分為古代、近代、現代和后現代四個階段，分別對應於前工業文明時期的城市旅遊、工業文明萌芽時期的城市旅遊、全面建設工業文明和后工業文明因素初露端倪時期的城市旅遊，以及邁向信息時代的城市旅遊，其間體現出不同的城市旅遊發展特徵； （ 2 ）經歷不同發展的時期，中國城市旅遊表現出如下的演進規律： 1 ）城市旅遊觀念開放程度逐漸增強，對城市旅遊的容納度日趨加大，對城市旅遊地位的認識從忽視到關注再成為生活的必要因素； 2 ）旅遊形式從單一走向多元，新的旅遊形式隨城市發展層出不窮； 3 ）城市旅遊的內外部空間聯系從封閉平面走向開放立體，達到網路化、連綿化、分區化、立體化布局； 4 ）城市旅遊支持系統從缺失走向健全，達到理性高端； 5 ）城市旅遊社會分層從森嚴走向融合，經歷了「小眾旅遊」 、 「大眾旅遊」 ，最終發展到「全民旅遊」 ； 6 ）城市旅遊產業演變態勢可以概括為一條橫臥的「 s 」曲線，表現為低開?高走?平穩發展。 -
Present - day crustal movement speed field of ch
網研究中國大陸塊體現今地殼運動速度場 -
Based on an analysis of the history and present status of the farmland - pastoral ecotone in the northern part of china, a new point of view was proposed in this paper for the construction of eco - environmental systems, namely, the industrial structure has to be modified so as to make a functional integration between different parts of the whole system : to give priority to a combination between cultivated grassland and in - shed feeding of domestic animals, and at the same time, to employ a new model of animal husbandry so that the degradated natural grassland can be recovered ; to develop a new type of processing industry for agricultural and forestal products so as to create a pluralistic enterprise structure ; to make a better use of water resources by taking advantages of the abundant resources of energy and minerals, and to restrain the expansion of industries of high environmental cost ; to employ techniques of integration management and restoration ecology, and to speed up the process of woodland and grassland recovery ; to make a thorough plan for arrangements of hills, waters, roads, farmlands, forests and pastures in order to gain an integration at landscape level
摘要在簡要分析中國北方農牧交錯帶形成歷史和現狀的基礎上，提出了北方地區生態環境建設必須從產業結構調整出發、進行系統功能整合的思路：把人工飼草業舍飼畜牧業擺在農牧交錯帶經濟發展的優先位置，推行新型畜牧業經營管理模式，促進天然草場改良復壯；發展「綠色」農林牧產品精細加工業，建立多元化產業結構；發揮能源和礦產資源優勢，合理利用水資源，限制以破壞環境為代價的產業的發展；推廣區域綜合治理與生態恢復技術，加大退耕還林還草的力度；山、水、路、農、林、牧統一規劃，實現生態系統在景觀水平上的整合。 -
However, the rate of rice - transplanting by machine was at a low level, only 2. 8 percent in our country at present. it was mainly due to the low reliability of the rice transplanter produced in our country. moreover, the price of foreign high - speed rice transplanter was high and they could not fit the high rice seedlings of the autumn season in the south of china
如果我國插秧機械化水平提高1 ，每年就能增產糧食3 . 75億kg ，但目前我國的機插率只有2 . 8 ，其主要原因是國產插秧機的可靠性低，而進口的高速插秧機價格太高且對我國南方雙季稻的晚稻大苗栽插適應性差，因而研究適合我國國情的高速水稻插秧機勢在必行。 -
Unlike in subsonic and transonic speed regimes, the interference resulting from the finite size of the test region is seldom present.
不像在亞、跨音速區域，這里因試驗段尺寸有限造成的干擾是難得存在的。 -
This paper aimed at present status that most researches assembled in chemical products, adopted different determine methods, represented the transformation characteristic of nitrogen among water and soil of the sulphureous urea, confirmed the nutrient release speed, found out the optimum determine method in agricultural production application
針對目前對緩釋肥料釋放特性的研究集中在化工製作領域這一現狀，採用不同的測定方法，闡明含硫尿素中的養分氮在水及土壤中的轉化特點，確定養分的釋放速率，以求找出適合農業生產應用的方法。 -
At the present, the total mileage of the world high - speed railway is nearly 5000km, which passenger car mainly runs on, and development of high - speed freight car is tardily
目前，世界上高速鐵路的總里程已近5000公里，但主要是運行旅客列車，而高速貨物列車發展則較為緩慢。 -
At present, the typic harmful current detection methods are the fast fourier transform algorithm in frequency domain and methods based on the instantaneous reactive power theory, these methods all require some transform and quick, real - time calculating, so high precision analog multipliers or high speed dsp chip with fast a / d are needed, this results in complex circuit and high cost ， which have restricted the development of apf
目前畸變電流檢測常用的方法有頻域法的fft和基於瞬時無功理論的畸變電流檢測法。這些方法均有一定的變換，需要快速、實時運算，因此必須使用高速的數字微處理器和高性能a / d轉換器，這必將大大提高系統成本，使得電路結構復雜，在一定程度上限制了有源濾波器的發展。 -
The first chapter introduces to you the background and environment of chinese domestic airlines at present, points out in china air passenger transportation market will keep growing at a relatively high speed, which brings both opportunities and challenges to chinese airlines, set the objective premise for the airlines ? development and upgrowth
第一章介紹目前國內航空公司所處的背景和環境，指出航空運輸服務面臨的更大的需求，客運市場將保持較快的增長。這是航空公司發展的客觀前提。 -
Facing the rapid development of higher education, in order to guarantee its healthy and sustainable development, and to properly deal with the relation among the scale, speed and finance, on the basis of the condition guideline for regular higher education ( trial version ) by the ministry of education, by using scientific method, this paper forecasts total revenues and total demands of budget period, estimates the capability of finance by analyzing and studying the present condition of education and the previous finance condition
摘要針對高等教育迅猛發展的形勢，為確保學校健康和可持續發展，妥善處理發展規模及發展速度與資金保障的關系，通過對學校基本辦學條件、基礎資料、歷年財務狀況的分析和研究，對照教育部頒發的《普通高等學校基本辦學條件指標（試行） 》的要求，採用科學的測算方法，預測規劃期辦學資金總收入和總需求，測算學校的貨款能力。 -
The computer speed is speeded up. the numerical results of the present models are in agreement with the theoretical solution and those of physical models. systematical numerical tests show that the present models can reasonably simulate the wave transformation, such as shoaling, refraction, diffraction, reflection, effect of currents and so on
比較詳細的模型驗證與應用表明，模型的數值模擬結果與解析解、物模實驗值吻合良好；可以較好地模擬波浪傳播過程中的淺水變形、折射、繞射和反射等多種現象；能正確合理地反映水流對波浪傳播的影響。 -
This thesis first comprehensively introduced the domestic and international present research state and the development trend of the fem ( finite element method ) in the city bus design and the stress analysis research. it elaborated the application of the fem in the strength and stress concentration analysis of the bus body frame. the domestic research started later than abroad lags behind now, so we need to expedite the research speed to catch up the level of the international research
本文首先較全面地介紹了國內外客車設計與應力分析中應用有限元法進行研究的現狀和發展趨勢，論述了有限元法在客車車身骨架強度和應力集中分析中的應用，並闡明國內起步較晚所以與國外研究水平存在一定的差距，需要加快研究速度迎頭趕上。 -
Abstract : the processes of thermal - bonding and the features of raw material were breifly described, the temperature, pressure and speed to properties of thermal - bonded fabric were demonstratively related on the basis of three specific trials. futhermore, the authors present a point of view about the developing tendency of themal - bonding technologies for hygienic market after having an analysis upon current market status
文摘:簡要介紹了熱軋非織造布工藝流程和衛生用熱軋非織造布原料的特點與選擇.通過對3個試驗的描述和對試驗結果的分析，詳細地論證了溫度、壓力和速度對熱軋非織造布性能的影響.根據市場的現狀，發表了對衛生用薄型非織造布生產技術發展方向的展望 -
Firstly, we generalize and analyze the advantages and present research of elliptic curve cryptography ; secondly, we study the basic theory of the ecc ; thirdly, we illustrate the safety of the ecc and discuss the elliptic curve key agreement scheme, elliptic curve encryption scheme and elliptic curve digital signature algorithm ; fourthly, we study fast algorithms of the multiplication and inversion multiplication of the element of in the underlying finite field f2m whose characteristic is two represented by the two basis of optimal normal basis and polynomial basis. we make improvements to the fast algorithm of the polynomial basis multiplication by hankerson and base on the experiments, we describe the properties and compare the advantages of the multiplication and inversion multiplication of the elements in f2m field under optimal normal bases and polynomial basis. results concluding from the study car be used as references in the realization of the elliptic curve cryptosystem ; fifthly, we overview the current fast algorithm of point multiplication, improve the fix base point comb algorithm, advance the speed of the whole system and remark the advantages and disadvantages of the popular algorithms based upon the experimental datas ; sixthly we realize the algorithm library of elliptic curve cryptography based on the f2m. only change slightly in our algorithm library can we realize the ecdh, eces, ecdsa based onf2m of anysize ; seventhly, we realize the ecc on two secure elliptic curves, including ecdh, eces, ecdsa
本文首先介紹並分析了橢圓曲線密碼體制的優點及研究現狀；其次研究了橢圓曲線密碼體制的基本理論；第三，分析了橢圓曲線密碼的安全性並介紹了密鑰共享，加密，數字簽名等橢圓曲線密碼體制；第四，深入研究了特徵為2的有限域f _ 2m中的元素在多項式基和最優正規基表示下的乘法運算和乘法逆運算的快速演算法，並對hankerson等人提出的多項式基下的乘法運算的快速演算法作了改進，而且在實驗的基礎上不僅分析研究了f _ 2m域中元素在多項式基和最優正規基表示下的乘法和乘法逆運算的性能，還對這兩種基表示下的f _ 2m域中元素運算效率的優劣作了比較和研究，所得的結論可供在實現橢圓曲線密碼體制時參考；第五，研究了目前流行的計算橢圓曲線標量乘法的快速演算法，同時改進了固定基點梳形法，提高了整個系統的速度，並在實驗的基礎上分析研究了流行演算法的優劣；第六，實現了基於f _ 2m的橢圓曲線密碼體制的演算法庫，在我們的演算法庫中只需稍微改變便能實現基於任意尺寸的f _ 2m上的ecdh ， eces ， ecdsa等橢圓曲線密碼體制；第七，實現了兩條安全橢圓曲線上的橢圓曲線密碼體制，包括ecdh ， eces ， ecdsa 。 -
First of all, this paper analyses present problems existing in the boiler combustion monitor system of power plants, then put forward the signification to realize precision measurement for the primary and secondary air speed of boiler and the necessary conditions to solve efficaciously this problem
本文首先分析了目前電站鍋爐燃燒監測系統中存在問題，提出鍋爐實現一、二次噴口風速準確測量的重要性以及有效解決該問題所需要滿足的必要條件。 -
Digital signal processor ( dsp ) combined with repm bldcm, which build up a dc adjustable speed system, achieve to control multiple motor speed, positive and negative rotate, protect and fault exemine by a true single chip. design and present a electromagnetism scheme of repm bldcm used in electromotion chair drive system. select electronical components and chips in the drive board by contrast with variant drive mode. design the drive board principle picture, make a drive board pcb and debug it. design a principle picture with dsp core. workout the motor control code introduced popular programme modle. test the programme reliability and control performance by linking tms320lf2407 evm, pc, drive borad and the bldcm. the bldcm swatch is prepare experiment
本論文闡述了方波驅動稀土永磁無刷直流電動機的原理及數學模型；設計並給出了一種電動座椅用稀土永磁無刷直流電動機的電磁設計方案；對電機採用何種驅動方式進行了對比分析；對驅動電路進行了元器件選型、原理圖設計、制板及調試；有針對性的闡述了dsp在本系統應用中所涉及到的功能模塊；設計了以dsp為核心的控制電路原理圖；以模塊化的軟體編程思想編制了電機控制軟體；通過tms320lf2407目標板、上位機、驅動板及電機的聯調，證明了系統可行。 -
With the development at fall speed of communication technology, network technology and semiconductor technology, internet technology design to industrial control and embedded system field permeate gradually. realizing internet interconnected is embedded systematic focus field and important direction of development this present
隨著通訊技術、網路技術和半導體技術的飛速發展， internet技術正在逐漸向工業控制和嵌入式系統設計領域滲透，實現internet互聯這是當前嵌入式系統發展的熱點領域和重要方向。 -
At the moment of speaking her hat had blown off into the road, their present speed on the upland being by no means slow
在說話的那個時候，她的帽子被風吹到了路上，他們當時走上坡路的速度也決不慢。 -
Whether the government will consider relaxing the present speed limit imposed on other major highways in the territory to bring it in line with that imposed on route 3 and route 9, so as to avoid the occurrence of bottlenecks on those highways as a result of traffic coming in from the direction of the new airport and the north lantau expressway ; if not, why not
會否考慮放寬現時對本港其他主要公路施加的車速限制，使之與三號干及九號乾的車速限制看，藉以避免有關公路在新機場啟用及北大嶼山快速公路通車后， -
You can check the parameters of each session include present speed, average speed, distance, highest speed, traveling time etc
你可以檢查每次開機/行車的車速、最高速度、時間、平均車速、里程等。
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