Back in 1896, the original Dow Jones Industrial Average was an unscientific selection of 12 American companies, weighted by the nominal level of their share prices rather than their market value.
1896年，道琼斯工业平均指数的计算最初只选择12家美国公司，按照名义股价而非市值进行加权，这很不科学。
Reliable operation in wet, dirty, high temperature environments makes magnetic pickups a popular selection for many industrial and commercial applications.
可靠地运行潮湿，肮脏，高温环境下作出的许多工业和商业应用的流行选择磁性拾音器。
The differences between molecular distillation and general distillation have been compared, and which provides a basis of selection for popularizing the technique in industrial use.
特别对比了分子蒸馏与一般蒸馏的区别，从而为工业化应用推广提供了选择依据。
The mixing process in the industrial acetic acid reactor is analyzed, the impeller selection and calculation of the gas-liquid dispersion mixing are described in this paper.
详细分析了工业合成醋酸反应器中的机械搅拌过程，描述了气液分散搅拌过程中搅拌桨叶的选择和计算。
According to coal selection practice for Nanchuan town gas engineering, this paper describes the industrial test on gasification by mixed firing with Xishui coal and Nanchuan coal.
结合南川县煤气工程气化原料的选择，介绍了习水煤与南川煤混烧制气工业试验。
The data obtained by using the MS-YGP wear test device can serve as a useful basis for the type selection of industrial coal pulverizing mills.
运用MS—YGP磨损试验装置测定的数据，可作为工业磨煤机的选型依据之一。
Research contents in this paper have important theoretical significance on curvilinear-weld-line TWB forming optimization and its selection and application in industrial production.
本文的研究内容对曲线焊缝拼焊板的成形性优化及其在工业生产中的合理选择与应用有重要的理论指导意义。
In this paper, the problem of selection of manipulated variables and measurement variables for complex industrial process is discussed.
本文讨论复杂工业过程控制系统中操作变量与量测变量的选择问题。
The method of environmental harmony materials selection and some factors of consideration in industrial design considering environment were put forward.
并且提出了工业设计融入环境因素的选择材料的方法及考虑因素。
This course is a professional industrial design of a threshold selection.
本课程是工业设计专业的一门限选课。
In this thesis, I studied the selection of the pressure sensor and the displacement sensor, determined the data acquisition card and the industrial computer.
本论文以轮对压装过程为例，详细说明了压装曲线记录系统的压力传感器、位移传感器和数据采集卡及工控机等硬件选择、软件设计原理。
No other industrial automation company in the world offers a larger product selection of sensors and interface devices.
世界上没有其他工业自动化公司提供了更大的传感器和接口设备产品的选择。
Perform Instrument Discipline Design work, including preparing instrument datasheet, industrial instrument selection, Instrument wiring diagram etc.
负责项目的仪表专业的设计工作，包括现场仪表的选型，仪表接线图等；
From the industrial practice, it is shown that the design features correct flowsheet and technical concept, rational selection of equipment and assures top class in ingot product.
实践证明，本设计工艺流程和技术方案正确，选用的设备合理，产出铟锭达到了国家一级标准。
Selection and application of measuring instruments for special medium is one of the great problems, which has puzzled the instrument engineers for years, in industrial units such as nitric acid plant.
测量仪表在特殊介质工况下的选型应用是一大业内难题，也是硝区生产多年以来困惑仪表人员的一个棘手问题。
The study suggested that maltose metabolism identification was an effective approach for rapid selection of proper industrial S. cerevisiae strains with high beer fermentation degree.
选用工业菌种过程进行麦芽糖代谢鉴定是快速筛选高发酵度菌株的有效途径。
As the characteristics of different oils in the industrial waste water and pollution sources of the railway enterprises, the non dispersion infrared photometry is the first selection.
根据铁路主要企业含油工业废水中油种来源及污染源特点，非分散红外光度法为首选方法。
As the characteristics of different oils in the industrial waste water and pollution sources of the railway enterprises, the non dispersion infrared photometry is the first selection.
根据铁路主要企业含油工业废水中油种来源及污染源特点，非分散红外光度法为首选方法。
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