speed of fall 中文意思是什麼
speed of fall
解釋
落下速度-
The method proposed in this thesis do well in solving the problems of multi - damping - ratio - spectra simulation. it is convenient to obtain the pareto optimal solution set of the multi - object question by using implicit parallel genetic algorithms and the method can meet the practical needs for simulating ground motions coinciding with multi - damping - ratio - spectra in seismic design. the crossing rate and variance rate are important parameters of genetic algorithms which affect the rate of convergence, the adapting rate of cross and variation in this paper can auto - adapt and according to stand or fall of current sample, it assures the sample approach to the pareto optimal solution set in fast convergent speed
較好地解決多阻尼比反應譜擬合問題；本文方法通過一次運行就能獲得一組具有集系特性的地震動，在擬合多阻尼比反應譜的人造地震波集系的模擬方面有傳統方法所不能比擬的優勢，產生的人造波或人造波集系可滿足工程抗震設計需要；在遺傳演算法中，交叉概率和變異概率是影響收斂速度的重要參數，本文採用的改進自適應交叉概率和變異概率，可以根據當前樣本的好壞程度來自動地選擇適當的交叉概率和變異概率，以保證演算法始終以較好的速度向pareto最優解集逼近。 -
Adopt transfiequency motor to control speed, processing speed fast and high processing efficiency ; adopt double straight line rolling glide and double ball screw rod transmission system guarantee the processing size s veracity and stability. upper chamfer angle can automatic rise and fall so its have easy handling, compact structure the minimum width of the glass can be 127mm
加工速度快，效率高雙直線導軌和雙絲桿傳動系統確保了加工尺寸的準確性和穩定性，上倒角自動升降的先進性，使其具備操作方便結構簡潔等特點。 -
Control of microcomputer, frequency control of motor speed, touching panel, programmable operation with rcf automatic computing and setting, adjustable rise - and - fall speed
微機控制、變頻調速、觸摸面板、可編程操作、具有rcf自動計算與設定、 0 - 9檔升降速可調。 -
Control of microcomputer, frequency control of motor speed, touching panel, programmable operation with rcf automatic computing and setting, adjustable rise - and - fall speed from grade 0 to 9
微機控制、變頻調速、觸摸面板、可編程操作、具有rcf自動計算與設定、 0至9檔升降速可調。 -
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。 -
This product fits for recycling resin bonded sand and used sand and it is made of two groups rotors with high rotating speed and scraper with low rotating speed. while working, the rotors with high rotating speed and scraper with low rotating speed will cooperate with each other to strike, cut, extrude and rub the sand to break and make the inert film to fall and to make the sand be recycled after separation by wind
該系列產品主要用於樹脂砂舊砂的再生，它的工作結構是由兩組高速旋轉的轉子和低速轉動的刮板組成，工作時，高速旋轉的轉子與低速轉動的刮板配合，對砂子施以沖擊剪切積壓和搓擦，使砂粒表面的惰性膜破碎脫落經過風選分離，達到再生目的。 -
In the absence of air the speed of the body depends only on the time of the fall, and does not depend on the body ' s weight
在沒有空氣的情況下，物體的速度只取決于下落的時間而不取決於物體的重量。 -
Based on remaining the dismantling and loading, we make full of the equipped instrument, and fall the whole cycle into three modules : speed - adjusting module, pressure module and multi - execution instrument module. we must compile the related plc control program and pc control program, and redesign the control cabinet and re - fix the electric cycle. we complete the auto - control of the hydraulic experiment table through the loading and recapitulate debugging
在保留其元件可裝拆性的基礎上，我們充分利用現有液壓實驗臺的液壓元件，對其基本迴路進行重新組合，分為調速、壓力和多執行元件控制迴路三個模塊，並編制可編程式控制制器程序和上位機數據採集程序控制迴路動作，重新設計該實驗臺的電氣控制櫃，並進行現場接線和安裝調試，實現所有教學必須實驗迴路的自動控制。 -
After measuring dark current, photocurrent and response to x pulse of gaas detector before and after 1. 7 mev electronic radiation, the response tune, fall time of trailing edge, full width of half maximum ( fwhm ), sensitivity, carrier life, mobility are researched and contrasted. the result shows that the response speed of detector, time resolution ratio and nonlinear of back edge of output signal have been improved greatly after electronic radiation. though sensitivity of the detector reduces, its measuring range can be widened
為了使探測器的性能得到進一步的提高，我們對其進行了電子輻照改性，並測量了本徵砷化鎵探測器和經過1 . 7mev電子輻照的探測器的暗電流、光電流及對x射線的脈沖響應，並對其響應時間，后沿下降時間，半高寬（ fwhm ） ，載流子壽命，靈敏度進行對比，研究，結果顯示經電子輻照后的探測器的性能得到了改善，使響應速度，分辯率進一步提高，並消除了探測器輸出信號后沿的非線性，雖靈敏度有所降低，反而使其測量范圍得以拓寬。 -
The selection of pipe wall thickness, the calculation and design key points of the melt flow, melt pipe flow pressure fall and melt flow speed in the design of melt pipes were introduced in detail
摘要介紹了熔體管道設計中管道壁厚選擇、熔體流量、熔體管道流動壓力降和熔體流速等計算方法和設計要點。 -
4. as for the three kinds of waterproof underlying surface, when rainfall intensity is strong, the rise process curve will steep in the process of discharge, and also speed of discharge to reach steady will quicker. but it produces little effects on duration of fall
4 .對于透水性差的下墊面，雨強越大，流量過程的漲水曲線越陡，且達到穩定流量的速度也更快，但對流量過程的退水歷時影響不大。 -
Raindrop fall at a speed of about500 to1, 000 feet a minute
雨點以每分鐘大約五百到一千英尺的速度下降。 -
Normal bp algorithm can be used in many fields and resolved many practical problems, however, normal bp algorithm has many limitations such as it ' s easy to fall into the local minimum in the course of convergence, its " convergent speed is very slow, the method which set the structural parameter and the operational parameter has n ' t be widely accepted, and so on
標準bp演算法應用甚廣，解決了許多的實際問題，但同時它也存在著諸如在收斂過程中容易陷入局部最小點、收斂速度很慢以及網路的結構參數（隱層數、隱層單元）和運算參數（步長、非線性函數的選擇）等都尚無公認的理論指導等問題。 -
The core patented know - how of double - locker, steel - wire ropes of 3, 5, 7, 10, 15, 20, 30, 40 8 different lengths are packed in the case and can be pulled out to use at will during work. in case of fall - off, it will automatically lock with the speed variation to stop falling
雙鎖止裝置專利核心技術，盒內裝有3 5 7 10 15 20 30 40米8種長度的鋼絲繩，作業時可隨意拉出使用，當發生墜落時，因速度變化自動鎖止，阻止墜落。 -
In addition for raising rise - and - fall - speed of goods when crane is in empty load and light load situation we need a improved double - speed - type transmission based on the original single - speed winch. using the differential planetary gear train that can do movement synthesis precisely can achieve this goal
另外為了提高起重機空鉤和輕載時的貨物升降速度，要求在舊型的單速卷揚機上進行改進實現雙速傳動，而利用差動行星輪系可進行運動合成的特點能達到這一目的。 -
China is a big country in yielding aquatic product, the output of aquatic product increase 、 with high speed, the aquaculture make important contribute to development of china ' s rural society and economy. however there also many problems to resolve in the development of china ' s aquaculture, for example pay too much attention increase output, neglect increasing quality, ignore maintain of resource and environment. after joined in wto, along with the amalgamation of china and world ' s economy, china ' s aquaculture market must fall after great infection. so after analysis on the produce process and conlnlerce of world ' s aquaculture, putting up systemic economic analysis and policy study on china ' s aquaculture, exploring the development rule and the countermeasure to realize the persistence development of aquaculture, have important theoretic worth for filling up research lack of china ' s aquaculture economy study. at one time, through economic analysis on china ' s aquaculture, study on its countermeasure, establish policy measure for scientific decision - making, have important practice meaning
因此，在分析全球水產品生產、加工和貿易現狀及其前景的基礎上，對中國水產業進行較為系統的經濟分析和政策研究，探索水產業的發展規律以及實現水產業可持續發展的對策，對于填補國內對這一領域的研究不足，形成「中國水產業經濟研究"理論框架，具有重要的理論價值。同時，本項選題通過對中國水產業的經濟分析，研究中國水產業發展的戰略思路，提出有針對性的對策建議，為政府制定相應的政策措施提供科學決策依據，具有重要的實踐意義。本項研究運用經濟統計學、計量經濟學、博弈分析等理論和方法，研究水產品生產、加工、對外貿易的歷史及現狀，針對水產業發展中存在的問題提出相應的對策。 -
But, pso convergence ' s speed become slow in latter iterative phase, and pso is easy to fall into local optimization. at present, some scholars improve base pso mostly using 3 methods : disperse algorithm, increase convergence speed, enhance particle ' kinds. in the paper, i put forward 2 methods aiming at local best resutl but not whole best result. i modify base pso using the last method. some scholars put forward times initializations, so i select best result after circulating some times to be a parameter of formula. first, put particle into some small region, and ensure every region having one paticle at least. second, every region ' s particle has probability transfer other regions. although increase running time, enhance particle ' kinds, decrese the probability of convergence far from whole best result. nerms ( network educational resource management system ) is one of the research projects in the science and technology development planning of jilin province. the aim of nerms is to organize and manage various twelve kinds of network educational resources effectively so that people can share and gain them easily and efficiently, so as to quicken the development of network education
但粒子群演算法仍存在如下不足:首先在多峰的情況下，粒子群有可能錯過全局最優解，遠離最優解的空間，最終得到局部最優解;其次在演算法收斂的情況下，由於所有的粒子都向最優解的方向群游，所有的粒子趨向同一，失去了粒子間解的多樣性，使得後期的收斂速度明顯變慢，同時演算法收斂到一定精度時，演算法無法繼續優化，本文對原始粒子群演算法提出了二點改進方案: 1 .演算法迭代到一定代數后，把此時找到的全局最優解當作速度更新公式的另一參數（本文稱之為階段最優解）再進行迭代; 2 .每次迭代過程中除最優解以外的每個粒子都有一定概率「變異」到一個步長以外的區域，其中「變異」的粒子在每一維上都隨機生成一個步長。 -
Especially in recently about ten years, because cdma communication rapidly is developing and the amount of user is increasing in striking speed, the capability of communication give prominence to fall. because capacity of channel is limited by interference, especially for the interference from the same channels and the adjacent channels
特別是近十幾年來，由於移動通信的迅猛發展，移動用戶的數量以驚人的速度在擴張，這樣由於用戶數量增長而造成通信質量的下降矛盾就顯得特別突出。由於通道的容量是由干擾所限定的，尤其是同通道干擾和鄰通道干擾的影響更為嚴重。 -
This factory located by the foot of the beautiful national scenic spot yandang mountain and by the 104 national way, is a stock enterprise and specializes in the production of anxin brand series personal fall preventer used for operation in a high place - txs2 series, tbs2 series fall preventers speed differential self - controlled body fall preventers ; xps series self locker for safe climbing ; european and american type safety belts and fittings and buffers
本廠系股份制企業，坐落在風光秀麗的國家級風景區雁蕩山山麓， 104國道旁。專業生產「安心」牌系列高處作業用個體防墜落用品txs2系列tbs2系列防墜器速差自控式人體防墜器xps系列攀登安全自鎖器歐美式安全帶及配件緩沖器。
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