Over the past, it focused more on the annual total profit and net assets income ratio as two basic indicators to evaluate an enterprises' business performance.

The purpose of this paper is to analyze and explore the regular patterns of the net assets income rate change so as to provide some reference for related research.

本文旨在分析和探讨净资产收益率变动的规律，以为相关研究提供思路。

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So want from property right, market, legal system, propagate in many aspects to control synthetically, could strengthen the management of the land assets income effectively.

因此，要从产权、市场、法制、宣传多方面综合进行治理，才能有效地加强土地资产收益的管理。

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How to accurately measure the volatility of assets income has been one of the core research issues in the financial sector.

如何准确地测量金融资产收益的波动一直是金融领域研究的核心问题之一。

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The land assets income of the loss, real for land owner's deserved land rent amount.

流失的土地资产收益，实为土地所有者应得的地租量。

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Analysis of the Affecting Factors in the Sharp Fluctuation of Net Assets Income in China's Listed Companies

我国上市公司净资产收益率剧烈波动的影响因素分析&来自深圳A股市场2001年度的证据

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The simulation results are useful for product quality and the profile designed in continue roll forming.

获得的结果对连续辊弯成形中的产品质量的控制和孔型的优化有着重要意义.

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The method is validated with roll forming process with 12 passes of section with outer edge.

通过模拟外卷边槽钢的12道次辊弯成形过程,验证了方法的有效性.

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We have advanced equipments and fully automatic production lines of color steel roll forming.

本公司拥有多条国内最先进的全自动压型钢板生产流水线.

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Based on the principle of plate roll forming, a lock joint former is developed.

运用板料滚压成形原理, 设计研制了通用的咬缝成型机.

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There are many influence factors on producing crack of hot rolled strip coil during roll forming.

导致热轧板卷冷弯开裂的原因很多.

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This paper a new method in customized cut-off cold formed profiles steel roll-forming line.

介绍据此设计的在线飞剪机的结构和组成,该机实现了型钢的快速无屑在线不停机切断,提高了型钢的断面质量和定长切断精度.

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A new way for determinating of deformation reference of roller design in roll forming is forward.

提出了一种滚压成形中辊轮设计变形基准确定的新方法.

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The model _ free forming technology speeded up the renewal of enamel products.

通过采用无靠模成形工艺,加快了制坯的更新换代.

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This paper introduced the sheet metal layered incremental forming process.

摘要本文介绍了金属板材分层渐进成形技术.

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Bellows ring by welding seamless pipe or tube forming process.

环形波纹管由无缝管材或焊接管材加工成形.

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The roll forming process and mould design of wheel rim are introduced.

分析了滚形轮辋的制造工艺,并提出了合理的成形工艺和模具结构.

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The computer-generated animation displayed the workpiece forming process lively.

计算机生成的动画图象直观地表现了工件的整个成型过程.

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Laser bending process is a new flexible forming process without rigid tool.

激光弯曲成形是一种热应力成形塑性加工技术.

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All the machines before the forming process have entered full automatic operation.

在成型过程之前的所有机器的操控均为全自动操控.

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In this paper, the forming process of train wheel was introduced.

介绍了火车车轮的成形工艺.

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