Much of Africa moved right into the Iron Age, taking the basic technology and adapting it to local conditions and resources.
非洲的大部分地区直接进入了铁器时代，采用了基本的技术并与当地的条件和资源相适应。
In the mechanical manufacturing of cast iron plate is an indispensable basic tool.
在机械制造中铸铁平板也是不可缺少的基本工具。
The basic control functions of RH vacuum installation for bloom CCM in PANGANG Iron & Steel Group Co. are presented, emphasizing the vacuum pump control system.
介绍攀钢方坯RH精炼装置真空系统基本控制功能，侧重介绍真空泵系统的功能和其相关系统控制。
The basic flow and kinds of Iron Ores Flotation Reagent has been summarized.
概述了铁矿浮选基本流程及铁矿浮选药剂种类。
This article introduced the basic principles, the implementing points and the application effect of superimposing directional correction of inclination for deep exploration in Daye Iron Mine.
通过大冶铁矿深部勘探实践，介绍了叠加定向纠斜法的基本原理、实施要点、使用效果。
According to the basic character of induction motor used in vehicle, this paper proposes a field oriented control model considering the iron losses.
从电动车用感应电机的基本特性出发，建立了考虑铁耗的感应电机转子磁场定向模型。
With a basic analysis on the metallogenic geologic Settings, the genetic types and geological features of each type of iron deposits in Eastern Jilin Province are studied.
在成矿地质背景分析的基础上，划分了吉林省东部铁矿成因类型，总结了各种成因类型矿床的地质特征。
The basic principle and process to produce the sponge iron in our corporation are introduced.
对海绵铁生产的基本原理及公司的海绵铁生产工艺进行了介绍。
To introduce automatic control system and its system structure for the bar continuous mill of Changzhi Iron and Steel (Group) Company. It includes system communication and basic control methods.
介绍了长治钢铁（集团）有限公司全连轧棒材自动控制系统的基本结构，包括系统通信及基本控制方法。
Magnetic Iron Oxide material is the important basic materials in the field of modern electronical technology.
磁性铁氧体材料是现代电子技术中关键的基础材料。
The basic principles, methods of monitoring with iron spectrum and it's position in monitoring the working conditions for mining machinery are illuminated in this paper.
论述了铁谱监测的基本原理、方法及其在煤矿机械工况监测中的地位。
Northwest gold steel sales company mainly in Baosteel, Anshan Iron and steel products, carbon steel, stainless steel and other basic covers steel sales.
西北金钢材销售公司主要以宝钢、鞍钢为产品基础、涵盖碳钢、不锈钢等钢材销售。
This product can only be used alone, can not color or with any other water-based, solvent-based product mix, not with perishable products, iron products, or basic access.
本产品只能单独使用，不能调色或者与其它任何水性、溶剂型产品混合使用，不能与易腐蚀的铁制品或者碱性产品等接触。
Through tests can determine the ore properties, basic tests have full iron grade, magnetic iron content.
通过化验就可以确定矿石性质，基本的化验有全铁品位、磁性铁含量。
As such, chromium - a trace mineral like iron and zinc - is not part of basic? Trace mineral premixes used in pig and poultry feeds worldwide.
就其本身而言，铬作为一种像铁和锌的微量元素，但在全世界的猪、禽预混料中并不是一种基础微量矿物质。
The basic principle and apparatus of measuring oxygen potential in molten iron were described.
综合分析了氧电势法的基本原理及测定装置。
In this dissertation fitting method is used in forming the basic magnetization curve of the iron core.
本文对铁心的基本磁化曲线采用了拟合的方法。
The basic physicochemical properties and reducibility of the scale and iron red in an iron and steel plant are researched.
对钢铁厂铁鳞、铁红的基本物化性能和还原性能进行了研究。
Bleaching is their basic process of formation. The key crux is the reductive bleaching of iron and manganese.
白鳝泥是其基本形成过程，实质是铁、锰的还原性淋溶。
Iron oxide pigment is a color pigment whose basic substance is the oxide of iron, such as red oxide, yellow iron oxide, black iron oxide, and brown oxide.
氧化铁颜料主要指基本物质为铁的氧化物的着色颜料，如氧化铁红、铁黑、铁黄、铁棕等。
Pass splendid specimens of Anglo Norman architecture, pass pedestrians and pederasts, open hearth furnaces, basic Bessemer mills, dynamos and transformers, pig iron castings and steel ingots.
机车经过盎格鲁-诺曼式建筑的堂皇标本，经过了步行者和男同性恋者、天冶炼炉、用贝塞麦法的磨坊、电机和变压器、铁块和钢锭。
They said ensuring that pregnant women get this basic prenatal care could have a big effect on the educational futures of children who live in poor communities where iron deficiency is common.
他们表示，确保孕妇产前得到这种基本产前护理，可能会对住在缺铁现象普遍的贫困社区孩子的教育前景，产生重大影响。
On the basis of the basic principle of iron chip inner-electrolysis, the effects of technological factors on treatment results were studied, and the best reaction conditions were found.
在研究铁屑内电解法基本原理的基础上，研究各工艺因素对处理效果的影响，并找出最佳反应条件。
It is a basic demand for evaluating the microstructure and performance to determine the graphite size and its spheroidization rate in nodular cast iron.
正确测定球墨铸铁中石墨大小及球化率，是对球墨铸铁组织性能进行评定的基本要求。
The characteristics of iron oxide black by crystal seed method and basic principle of synthetizing its crystal seed were discussed.
本文论述了晶种法氧化铁黑的特点和合成氧化铁黑晶种的基本原理。
The solidification process of turntable in sand-faced iron mould was numerically studied, and the basic parameters of the process were obtained.
对轮盘的铁型覆砂铸造成形过程进行了数值模拟，获取了铸造填充过程的基本参数。
The consistent results indicate that the former method can be used to study not only iron-core transformer, but also non-core transformer, and therefore, is a basic analytical method.
因而用自感电动势、互感电动势建立微分方程的方法既可以讨论含铁芯变压器，亦可用于对空芯变压器的探讨，因此是一个最基本的分析方法。
The consistent results indicate that the former method can be used to study not only iron-core transformer, but also non-core transformer, and therefore, is a basic analytical method.
因而用自感电动势、互感电动势建立微分方程的方法既可以讨论含铁芯变压器，亦可用于对空芯变压器的探讨，因此是一个最基本的分析方法。
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