分析了铜合金制品缩尾缺陷的产生原因，并提出了相应的预防措施。有效减少缩尾缺陷，提高产品质量和经济效益。
The causes of back end defects of copper alloy extruded products were analyzed, provide preventive measures, the product quality had been improved effectively, thus achieving good economic benefit.
本文以某气体分馏装置为例，通过严格的流程模拟，分析了产品质量、回流比和塔压等操作参数对总经济效益的影响。
A case study of gas separation system is given to illustrate the effects of product quality, reflux ratio and tower pressure to total economic benefit through flow simulation.
论述了陕西省子长气煤在新型直立炉炼焦的工艺过程及炉型特点，分析了产品质量及经济效益。
The coking process of zichang gas coal in the new type of shaft furnace and furnace'e feature are described. The quality of products and economic benefits are analyzed.
通过对半成品、催化剂分析数据表明，该剂对产品质量和装置运行无不良影响，具有较好的经济效益。
The industrial run data shows that the inhibitor DCA-112 has no impact on unit operation and products quality, and gives obvious economic benefit.
本文通过对产品质量与成本关系的分析，认为任何质量标准都有一个合的理经济界限。
Through an analysis of the relationship between quality and cost, the article believes that there should be a rational economic standard for any criterion of measuring the quality.
从经济学的分析角度出发，从农产品质量安全的角度对农户安全技术的选择行为进行了研究。
This paper is based on farmers' technology choice behavior from the quality and safety of agricultural from the perspective of economics analysis.
从经济学的分析角度出发，从农产品质量安全的角度对农户安全技术的选择行为进行了研究。
This paper is based on farmers' technology choice behavior from the quality and safety of agricultural from the perspective of economics analysis.
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