mathematical calculation 中文意思是什麼

This paper analyzes the groundwater discharging course using fluidics theory and combining quay structure construction ; sets up the method of fast drainage by the dint of pipeline and blind ditch of fragment stone ; and gives the computational mathematical model for quay drainage and calculation formula for drainage process according to the principle of conservation of mass and underground percolation, which have been applied for quay ' s stability design and calculation

應用流體力學理論結合碼頭結構建設，分析了地下水排泄過程，藉助管道和碎塊石盲溝建立了港口碼頭快速排水與擋墻基床排水的方法；運用質量守恆定律和地下水滲流原理，建立了港口碼頭排水計算數學模型和排水過程計算公式，並用在了碼頭的穩定設計計算中。

Abstract : based on the present possessed experimental data of steels with their different major chemical composition, this article formularized the calculation of linear expansion coefficients of fine carbon steels and low alloy constitutional steels through a series of alternate analysis, generalized statistics, curve superimposition and mathematical modeling

文摘:對優質碳素結構鋼和幾類低合金結構鋼，在現有實驗數據的基礎上，通過迭代分離、綜合統計、圖象分析和數學擬合，得出按鋼的主要化學成分確定其線膨脹系數的計算關系。

Based on consider hereinbefore, this dissertation discusses several aspects on the problem of the sustainable and optimum exploitation of groundwater resources as follows : ( 1 ) reviewed entirely the origin and evolvement of the concept " sustainable development ", stated and commented the study status in queue on " sustainable development " around national and international range, thorough discussed the science connotation about the concept " sustainable development " ; ( 2 ) looked back and commented across - the aboard some furthest basic concept and proposition related to groundwater resources, put forward self opinions on a few existent mistake points of view and chaos understandings ; ( 3 ) expatiated entirely on the content and meaning of the theory of changeable groundwater resources system, contrast with the traditional methods of groundwater resources calculation and evaluation, combined example to show the application of this theory ; ( 4 ) thorough analyzed the difficult and complexity to forecast the groundwater resources, fully stated the traditional methods of groundwater resources forecasting, pointed out the characteristic and applying condition of these forecasting method, introduced the main ideas and methods of wavelet analysis developed recently, and the matlab software be known as the fifths era computer language, and its accessory wavelet analysis toolbox, applied these methods and tools to analyze the groundwater dynamic curve, adopted the b - j method and morte - carlo method, combined with the theory of changeable groundwater resources system, discussed the new view on the forecast of groundwater resources ; ( 5 ) synthetically analyzed the characteristics and limitations of the present all kind of groundwater manage model, combined mathematical programming mathematical statistics random process and the theory of variation system of groundwater resources on the unite optimum attempter of surface water and groundwater, emphasized how to make the model more nicety, more simple, more practicality ; ( 6 ) analyzed the inside condition and outside condition to assure the sustainable and optimum exploi tation of groundwater resources, the inside conditions are the follows : correct resources idea, scientific methods of resources calculation and evaluation, credible forecast methods of resources, exercisable measures of resources management, the outside conditions are the follows : the development idea of high layer, the transform of manage system, the matched policy and rule of law, the adjusted of economy lever, the improve of cultural diathesis, the boosting up of water - saving consciousness and detail measures, the control of population rising, the prevention and cure of water pollute, the renew and rebuild of ecology ; ( 7 ) scan the sustainable and optimum exploitation of groundwater resources from the high level of metagalaxy, earth system science, and philosophy ; lint out the more directions on groundwater resources

基於以上考慮，論文主要從以下幾方面對地下水資源可持續開發問題進行了比較深入的探討：全面回顧了「可持續發展」概念的由來與演變，對國內外「可持續發展」的研究現狀進行了述評，並對「可持續發展」概念的科學內涵進行了深入探討；對涉及地下水資源的一些最基本的概念和命題進行了全面的回顧和評述，對目前仍然存在的一些錯誤觀點和混亂認識提出了自己的見解；全面闡述了地下水資源變值系統理論的內容和意義，並與傳統的地下水資源計算評價方法進行了對比分析，結合實例具體說明了方法的應用；深入分析了地下水資源預測預報工作的極端重要性和復雜性，對傳統的地下水資源動態預測方法進行了全面的評述，指出了各類預測預報方法的特點及適用條件，對最近二十多年剛發展起來的小波分析技術的主要思想和方法及其應用范圍，以及號稱第五代計算機語言的matlab軟體和附帶的小波分析工具箱進行了介紹，並應用於地下水動態過程線的分析，採用時間序列中的b ? j法，蒙特卡羅方法，與地下水資源變值系統理論相結合，探討了地下水動態資料分析和地下水資源預測預報的新思路；綜合分析了現今各類地下水管理模型的特點及缺陷，將數學規劃、數理統計、隨機過程等與地下水變值系統理論相結合進行地表水地下水或多水源的聯合優化調度，使模型更準確、更實用；對保證地下水資源可持續開發的內部條件和外部條件進行了分析，內部河海人學博卜學位論文前言、摘要、目錄條件主要是正確的資源觀，科學的資源計算與評價方法，可靠的資源預測預報技術，可操作的資源管理措施，外部條件主要是高層發展思路、管理體制的變革、配套的政策法規、經濟杠桿的調節、人文素質的提高、節水意識的增強及具體節水措施、人口增長的控制、水體污染的防治、生態的恢復和重建等;從宇宙科學、地球系統科學及哲學的高度審視地下水資源的可持續開發;指出了地下水資源可持續開發的進一步研究方向。

This paper explores physical essence of overrunning clutch torsion stiffness, builds torsion stiffness mathematical model and give calculation method of torsion stiffness in miler overrunning clutch

摘要分析了滾柱式超越離合器扭轉剛度的物理本質，建立扭轉剛度的數學模型，給出了滾柱式超越離合器扭轉剛度的計算方法。

In this paper, starting from the basic law of fluid me chanics, a mathematical model equation for describing the tran sient flow of the wet gas in the pipeline under peak shaving op eration is established, a simplified treatment for the model equa tion is made and a train of thought for concrete calculation is de signed

文章從流體力學的基本規律出發，建立了描述濕天然氣管道輸送調峰工況下瞬變流的數學模型方程，並對模型方程作了簡化處理，設計了具體的計算思路。

Aiming at the problem that the seeds picked up by the suction plate of the seed metering device cannot accurately fall into the seed pit opener as well as into the seed pit, an innovated seed metering device on which the seed dropping angle can be adjusted within a certain range and a new testing stand have been developed in accordance with the mathematical calculation model that had " in accordance with the mathematical calculation model that had been established previously. then an experimental study is conducted and the seed dropping law has been found out through the study

本論文根據2bqm - 2型氣吸式精量鋪膜播種機的結構和工作原理，針對該機在實際播種中，吸種盤吸出的種子不能滿足準確地落入在膜上滾動開穴的鴨嘴內，並及時地排入到鴨嘴所成的穴孔內的設計要求，進行了一定的試驗研究，利用已建立的計算數學模型，設計新的試驗臺，改進排種器，使排種器的落種角度可以在一定的范圍內調整。

Mathematical model for temperature distribution calculation during wheel quench heating process is established and used in the simulation of a certain type wheel

摘要根據馬鋼車輪淬火加熱爐的實際狀況，建立了車輪淬火加熱過程溫度場計算模型。

This thesis briefly analyzes some yield criteria and instability criteria to the sheet metal forming first. then according to the transformation rule from ultimate strain to ultimate stress, it establishes the mathematical calculation models of the forming limit stress diagram for the software development according to hill48 、 hill79 and hosford yield criterion irrespectively

本文首先分析了板料成形的屈服準則和失穩準則，然後根據極限應變到極限應力的轉換關系，分別採用hill48屈服準則、 hill79屈服準則和hosford屈服準則，建立了用於軟體開發的成形極限應力圖的數學計算模型。

The paper presents several aspects in partition rectification and visualization of raster image. adopt technology of visualization for scientific calculation, vector diagram of deformation 、 contour chart of deformation and drawing of three - dimensional are realized. delaunay tin in view of deformation feature is constructed on base of selected grid control points and methods and mathematical models for partition rectification are realized based on the delaunay tin. software of geometric rectification for large scales are realized and applied in project

本論文針對柵格影像的變形可視化及分塊糾正展開研究，取得了以下幾方面的研究成果：一、採用科學計算可視化技術，繪制變形矢量圖、變形等值線圖和三維效果圖，實現了柵格影像變形特徵的可視化；二、提出了在格網控制點（ gcp ）數據基礎上選擇性構造顧及變形特徵的delaunay三角網，並基於構造的三角網實現了分塊糾正的方法和數學模型；三、採用vc編制了影像幾何糾正軟體，實現大比例尺掃描地形圖的糾正，並在工程中得到應用。

The improved scheme can ensure the south branch to be open to navigation and the flow here not to be broken in low water seasons, and it will have active effect on protecting the south branch and fuyuan town. this study is an attempt of applying three - dimensional mathematical model in analogue calculation and analysis of flow, sediment and riverbed movements in a long river reach. it is very important for the future thorough research, and has great significance for promoting the application of the three - dimensional model to resolve

本研究是三維數學模型對較長河段水流、泥沙、河床運動模擬計算分析的一次嘗試，其對今後進一步深入研究和應用三維模型解決工程實際問題，完善模擬方法、提高模擬水平，真正發揮數學模型其省時、省力、靈活方便和模擬細膩等在研究水沙運動規律和河床變形等方面研究中優勢具有重要的意義。

At the same time ， the fluid atomizing mathematical model of particle diameter and particle quantity were established ， and also the analogy calculation of particle diameter and particle quantity were carried out. the feasibility is verified that the fluid atomizing mathematical model can make prediction on the atomizing performance of pesticide. these will provide scientific foundation and deinsectication technology for the development of precise agriculture

同時研究開發了粒徑與粒數的液體微粒化計算模型，並對噴霧機和煙霧機進行了粒徑與粒數的模擬計算，驗證了液體微粒化計算模型對農藥微粒化性能預測的可行性，為精準農業的發展提供了科學依據和防除技術。

According to the stress wave theory on explosive exploding propagating in the rock, it builds up mathematical model of fractural ranges in the rock, and carry out actual calculation and analysis on fractural range of bench shooting in deep - hole. as a result of calculation, the lateral and bottom fractural range are about 1. 9m

根據炸藥爆炸在巖石中傳播的應力波理論，建立巖石爆破破裂范圍數學模型，並對深孔梯段爆破破裂范圍進行了實行計算分析，計算結果為：混裝乳化炸藥巖石深孔梯段爆破側向底部破裂范圍為1 . 9m 。

Of course, as for the questions in the breakdown of natural science, too uncommon and boring mathematical calculation can influence your activity, therefore i ask interesting and practical questions, such as creatural diesel oil, using of straw, recycle of rubbish, resource insect cultivation, as far as possible

當然，對于自然科學版里的問題，太生僻、枯燥的數學計算會影響大家的積極性，所以我盡量提問有趣的、實用性較強的題目，譬如生物柴油、秸稈利用、白色污染以及垃圾回收、資源昆蟲養殖等。

He argued that human energy was being wasted at a rate subject to mathematical calculation.

他說明人類正以數學方程計算的速度浪費精力。

Analyzes production personnel and production specifications, capacity data and performs mathematical calculation to determine manufacturing processes, tools and manpower requirements, selecting the best way to meet the production quota

分析計算生產人員和生產規范，人員技能信息資料，來確定生產過程，工具和人力的需要，從而選擇最佳的生產配額方式。

This article presents a mathematical calculation model of kinematic parameters for the unusual shape beam pumping unit by analyzing its geometry relationship and kinematic characteristics

異形游梁式抽油機的游梁后臂有效長度隨曲柄轉角而變化，故無法利用常規游梁式抽油機的解析方法來計算其運動參數。

R extracts remote sense information and conventional information to establish special analysis information system about water resource in longkou city which includes special database and attributive database ~ based on the analysis of database, ten water resource mathematical calculation models have been set up, i. e. precipitation, runoff, groundwater, evaporation, discharge, utilizable water resources degree, industry and living with horton geomorphology and g theory

提取遙感信息和常規信息，建立龍口市水資源時空分析基礎數據庫，包括空間數據庫和屬性數據庫。基於基礎數據庫的分析，以horton地貌律和g理論為指導，建立降水量、徑流、地下水、蒸發量、水資源可利用量、工農業及生活用水量等十種水資源數學計算模型，即構建起模型庫。

According to the former mathematical calculation models, the applied software, which uses the forming limit stress diagram as its instability criterion, is developed based on the sheet metal forming finite element code dynaform using visual c + +

根據以上所建立的數學計算模型，基於板成形專用有限元分析軟體dynaform的環境，用visualc + +開發了以成形極限應力圖作為判據的應用軟體。

Cutting waste of wood ; definitions and mathematical calculation methods

木材切削加工廢屑.定義和數學計算方法

Wind tunnel tests of the stadium cantilevered roofs and mathematical calculation

體育館屋蓋的風洞試驗研究和數值計算