查询词典 double-entry system

The breakthrough point of this thesis is to make use of newsvendor"s model to explain the behavior of double marginalization in the Specialization system with Specialization Advantage, which is not accordant with the statement of" double marginalization " in economics (see Tirole,"the theory of industrial organization, P222-230). On the condition of Specialization Advantage, double marginalization may play positive role in the economy of the system.

论文的切入点是，利用报童模型来说明在具有分工优势的专业分工系统中双重边际效应的表现，这与经济学中对"双重边际效应"的表述参见Tirole(泰勒尔，《产业组织理论》，p222-230不完全一致，在有分工优势的条件下，双重边际效应可能对系统的经济性有积极的作用。

It showed that the blend system had much slower Rp than that of hybrid monomer, either of acrylate double bond or propenyl ether double bond, and propenyl ether double bond conversion of hybrid monomer was much higher than that of the blend system at the end.

杂化单体与相同类型的混合体系相比，每种基团的反应动力学性质都得到了促进，丙烯酸酯和丙烯基醚双键的聚合速率都有了很大提高，丙烯基醚双键的转化率较混合体系有很大增加。

To eliminate abnormity wear of tires in double-front-axle system of heavy truck, the kinematics and dynamics analysis method is set forth. On the base of the results for heavy double-front-axle truck load distributing and manipulate stability, tire uniformity load condition and deficiency steering characteristic condition of heavy double-front-axle truck are put forward. Steering trapezia space movement formula, double-swing-arm space movement formula and double-swing-arm movement formula in actual status of heavy double-front-axle truck are fetched. Optimization models of steering trapezia and double-swing-arm are founded and optimization arithmetics of transmission system in double-front-axle steering are compiled.

本文以消除重型汽车双前桥转向系统轮胎异常磨损等为目的，阐述了双前桥转向系统的运动学、动力学分析方法；在分析了双前桥重型汽车载荷分布和操纵稳定性的基础上，提出了双前桥重型汽车轮胎均载应该满足的条件、双前桥重型汽车具备不足转向特性应该满足的条件；推导了双前桥转向梯形空间运动关系式、双摇臂机构空间运动关系式和双前桥汽车实际工况下的运动关系式，建立了转向梯形和双摇臂机构优化设计模型，编制了双前桥转向传动系统优化算法。

Mixture method and double injection system are applied to study the combustion of coal liquid fuel in a 1E150C type diesel engine.

许锋在1E150C型柴油机上，采用混合法和双喷射法进行了燃用煤液化燃料的试验研究。

Based on the analysis, the fermentation conditions of the cornstraw for constructing double yeasts system ...

最后利用BOX-WILSON的中心组合设计对发酵条件进行了优化试验，并在此基础上研究并建立了嗜鞣管囊酵母的发酵动力学模型。

The double - rapier system is accepted as existing when two rapiers enter the shed from the opposite sides.

双剑杆系统在应用时由两只剑杆从织机的两侧进入梭口。

The closing group with double toggle system,consisting of three platens connected by four tie-bars,is driven by hydraulic cylinder.

最后一组使用的双曲肘系统是由液压缸驱动的（其双切换系统包括三个盘，由四个系杆连接在一起。

First, according to knowledge and theory about information theory, control theory, safety system engineering and manpower resource, a safety management model adapt to local coal mines is given. And then several sub-module in the model are discussed, including safety target management and duty tracing system, three-class hidden trouble exclusion and closed-loop safety information management system, safety and technology management system, accident analysis and prediction, safety culture and management of person with ability,"double foundation" construction, emergency and succor system, and management system that serves for safety production. Particularly two sub-module—safety management model" running mode and "double foundation construction are emphatically discussed here.

论文首先根据信息论、控制论、安全系统工程以及人力资源管理等学：科的有关知识和理论，研究设计出符合地方煤矿实际情况的安全管理模式，然后对本模式包含的安全目标管理与责任追究体制、三级隐患排查和闭环式安全信息管理系统、安全与技术管理体系、事故分析与预测、安全文化与人才管理、&双基&建设、应急救援体系、服务于安全生产的管理制度等子模块展开论述，特别是对安全管理模式的运行方式和&双基&建设进行了重点论述。

This paper deals mainly with (1)partition of Au and Ag in coexisting phases of lower maturity and high sulphur crude oil and aqueous solution;(2)mobilization and transport abilities of Au and Ag during the interaction of water,oil,and rock;(3)enrichment ability of Au by crude oil during oil generation and primary migration within double source system and under the experimental temperature and pressure.

本文实验内容包括Au、Ag元素在低熟高硫原油及其共存的水溶液中的分配特征，水－油－岩反应体系中Au、Ag活化和迁移的能力，以及在共同源岩和温度，压力共同作用的压力机系统中，石油生成和初次运移过程对Au的富集能力等。

Firstly, this paper discusses the development actuality of the research on double-front axle steering system and power-train of automobile. Based on the structure of the design experiences from others, the kinematics formula of double-front axle steering system is fetched, and the mathematical model of optimization design of double rocking arms mechanism and steering trapezium mechanism is established by space geometry method. Considering the difference between the real steering angle from wheels and the ideal steering angle from the ideal formula as the objective function, the optimization design method of double-front axle steering system is presented.

本文首先论述了国内外对汽车双前桥转向系统和动力传动系统研究的发展状况，在总结前人研究设计经验的基础上推导出汽车双前桥转向系统运动学关系，运用空间几何法建立了双前桥双摇臂机构及转向梯形机构优化的数学模型，以转向轮实际转角值与理想公式求出的理想转角值之间的误差达到最小为目标函数，提出了双前桥转向系统参数的优化设计方法。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。