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of model
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  模型
     Research on Key Technology and Applications of Model Predictive Control Software
     模型预测控制工程软件关键技术及应用研究
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     Study and Application of Model for Heat and Mass Transfer in Capillary Porous Media during Drying
     毛细多孔介质干燥过程中传热传质模型研究及应用
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     Research on Theory and Applications of Model Predictive Control
     模型预测控制理论及应用研究
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     Explaining Counterexample of Model Checking
     模型检验的反例解释
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     Study of Model for Heat and Mass Transfer in Solid Oxide Fuel Cell
     固体氧化物燃料电池传热传质模型研究
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  “of model”译为未确定词的双语例句
     The Experimental Study on Decoction of Rehmanniae Improving Learning and Memory of Model Rats and Mechanism of Proventing and Treating Alzheimer's Disease
     地黄饮子改善痴呆大鼠学习记忆及其防治AD作用机理的实验研究
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     Studies on the Preparation of Basic Thermal Process Beef Flavorings by Maillard Reaction of Model System
     Maillard反应体系制备热加工牛肉风味基料的研究
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     A STEP-PULSE TYPE WAVE STAFF GAGE OF MODEL MDCB
     MDCB脉冲式电接测波仪
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     Analysis of Washing Treatment of Fabrics and Test of Model WS Open Width Washing Machine with Horizontally-Guiding Rollers
     织物水洗理论分析与WS横导辊平洗机的测试
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     Analysis of Washing Treatment of Fabric and Test of Model WS Open Width Washing Machine with Horizontally-Guiding Roller
     织物水洗理论分析与WS横导辊平洗机的测试
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     model.
     模型。
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     Model.
     模型的适用范围。
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     E model of CRM.
     E模型。
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     The Isobar model of G.
     本文将G.
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  of model
This paper formulates a kind of dynamical macro-economic model based on Sidrauski's work, then presents the sufficient and necessary conditions of the stability of model at equilibrium states, and shows some results for special production functions.
      
We give a brief review of the past development of model studies on one-dimensional heat conduction.
      
Kinetic characteristics of model enzymes and physicochemical properties of globular proteins modified by chemical analogues of low-molecular-weight microbial autoregulators (alkylhydroxybenzenes, AHBs) have been studied.
      
The problem of model predictive control for discrete systems with random dependent parameters is considered.
      
The ginsenosides with two carbohydrate moieties (bisdesmosides), as well as all the panaxatriol glycosides we studied did not exhibit cytotoxic activities against tumor cells or alter the permeability of model lipid and lipid-sterol membranes.
      
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Distorted river model, designed according to Froude's Law, generally requires a rather high value of Manning's roughness n. Artificial roughness of such high magnitude is difficult to obtain in the model. The use of small gravels or coarse sand to adjust the required roughness will reduce the effective cross-sectional area and raise the water surface elevation in the model. It is very difficult to estimate the effect due to such a reduction of cross-sectional area. River model designed not according to Froude's...

Distorted river model, designed according to Froude's Law, generally requires a rather high value of Manning's roughness n. Artificial roughness of such high magnitude is difficult to obtain in the model. The use of small gravels or coarse sand to adjust the required roughness will reduce the effective cross-sectional area and raise the water surface elevation in the model. It is very difficult to estimate the effect due to such a reduction of cross-sectional area. River model designed not according to Froude's Law is suggested in this paper. Model roughness is selected arbitrarily, and other hydraulic elements are proportioned according to Manning's formula. It is proved that, even though the Froude Number in the model is many times larger than that in the prototype, the deviation of model water surface elevation from prototype is generally negligible, and moreover, such deviation may be corrected by using specific energy curves.

按照夫劳特定律設計的变态河工模型,一般地要求在模型中有相当大的滿宁粗糙系数n。在模型中要得到那样大的人造粗糙系数是有困难的,用小石塊或粗沙来得到所要求的糙度,將会減少有效过水断面面积,並且抬高模型中的水面高程。由於过水断面面积的減少而引起的影响,是难於估計的。在本文中,介紹了不按照夫劳特定律設計的河工模型。模型的糙度是任选的;其他的水力要素,根据滿宁公式按此例求得。試驗証明,在模型中的夫劳特数,虽然大於原型的夫劳特数很多倍,根据模型試驗获得的水面高程与原型水面高程的誤差,一般是可以忽略不計的,同时,这种誤差可以用單位能量曲線予以校正。

A device for measurement of fhe hydrodynamical pulsating pressure acting over the down stream apron of an overflow spillway is herein described, together with its main construction principles. By means of such a device in a preliminary invesitigation in our hydraulic laboratory, it is found that due to the existence of such pressure pulsation, a bloc of pavement of the apron will be set into 2-degree vibration, which ought to be taken into consideration in design. Finally, some meditations are given, concerning...

A device for measurement of fhe hydrodynamical pulsating pressure acting over the down stream apron of an overflow spillway is herein described, together with its main construction principles. By means of such a device in a preliminary invesitigation in our hydraulic laboratory, it is found that due to the existence of such pressure pulsation, a bloc of pavement of the apron will be set into 2-degree vibration, which ought to be taken into consideration in design. Finally, some meditations are given, concerning the problem of model laws. It is proposed that the magnitude of the pulsating pressure . proportional to the linear scale of the water depth over the apron and the frequency of pulsation inversely proportional to its square root.

本文介绍一种在水工模型实验中,施测水流脉动压力的仪器,及其构造原理。 使用这种仪器进行了实验,其结果表明:由于水动压力脉动的存在,溢流坝下游的护坦 版将产生两个自由度的振动。这在设计时应予以考虑。 此外并对这灰实验的模型律总是提出如下意见:(一)脉动压力的大小与护坦上水深比 例尺成正比,(二)其脉动频率则与护坦上水深比例尺的平方根成反比。 水流的威力脉动现象已为世所公认,特别是在水流情况发生剧烈改变时(例如水跃或局部消能设备)表现尤为显著。研究这种现象不仅在紊流理论上有重要意义,而且与水工建筑物下游的护坦安全以及河床冲刷问题都有密切关系。我们水力学教研室对于水平的护坦上脉幼压力问题进行了一些实验。

In order to approach the world level of shipbuilding,science within twelve years,it is necessary to survey the recent development in shipbuilding research of some leading maritime countries.This paper starts with stating the achievments of shipbuilding research work in this himdred years and steps taken by some leading countries for further development after the World War Ⅱ.Then it goes on to discuss the main achievments in the field of ship hydrodynamics and ship strength in recent years,and these are subdivided...

In order to approach the world level of shipbuilding,science within twelve years,it is necessary to survey the recent development in shipbuilding research of some leading maritime countries.This paper starts with stating the achievments of shipbuilding research work in this himdred years and steps taken by some leading countries for further development after the World War Ⅱ.Then it goes on to discuss the main achievments in the field of ship hydrodynamics and ship strength in recent years,and these are subdivided into the following headings: Ship hydrodynamics:(1)Systematic model testing.(2)Model-ship co-relalion, (3)Theory of wave making resistance,(4) Systematic testing of model propellers, (5)Propeller theory,(6)Cavitation,erosion,Singing of propellers,(7)Ship motion and seakeeping quality. Strength of ships: (1) Strength testing of actual ships and stress measure- ments on sea way,(2)Strength testing in model tank,(3)Problem of long superstructure,(4) Elastic and plastic strength of ship plating,(5) Ship vibration, (6) Materials for ship construction. This paper also gives an account of the preliminary achievments of the Chinese shipbuilding research work in respective fields and expresses the opinion that a great deal of amount of work is left to be done for the Chinese naval architects.Finally,the paper suggests that China must redouble her effort to construct her main shipbuilding research base equiped with instruments and apparatus of highest quality and to train the research experts as quick as possible.

为了在十二年内争取赶上世界的造船科学水平,就有必要对世界各国造船科学研究的发展,进行一番探讨。本文首先说明造船科学在百年来所起的作用,和二次世界大战后各国对造船科学研究的组织和发展。进一步探讨了二次大战后在船舶流体力学及船体强度学两方面的主要成就。并分以下几部份叙述: 船舶流体力学方面:(1)关于船型的系列试验;(2)关于船模与实船的换算关系;(3)兴波阻力理论;(4)推进器系列试验;(5)推进器理论;(6)推进器空泡、剥蚀、唱音等问题;(7)船舶运动和适航性。船体强度学方面:(1)实船强度试验和航行中应力测量;(2)船模试验池中的强度试验;(3)长上层建筑问题;(4)船体钢板的弹性塑性问题;(5)船体振动问题;(6)造船用材料问题。文中也涉及一些我国造船科学研究的初步收获,并说明我国在整个造船科学领域中还留着很大空白面。为了进一步发展我国的造船科学研究;建设主要的研究基地,充实仪表设备和培养研究人员是刻不容缓的事。

 
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