查询词典 Ore.

Until fairly recently, the only way to extract pure copper from ore was by using a process that requires large amounts of electric energy, especially if the proportion of copper in the ore is low.

直到最近，从矿石中提取纯铜的唯一方法是通过一种需要大量电力的流程，特别是当矿石中铜的比例比较低的时候。

Until fairly recently, the only way to extract pure copper from ore was by using a process that requires large amounts of electric energy, especially if the proportion of copper in the ore is low.

直到最近，从矿石中提取纯铜的唯一方法是通过一种需要大量电力的流程，非凡是当矿石中铜的比例比较低的时候。

Until fairly recently, the only way to extract pure copper from ore was by using a process that requires large amounts of electric energy, especially if the proportion of copper in the ore is low.

直到最近，从矿石中提取纯铜的最佳方法是使用一项需要消耗大量电能的工艺，尤其是当矿石中铜含量低的时候。

Until fairly recently, the only way to extract pure copper from ore was by using a process that requires large amounts of electric energy, especially if the proportion of copper in the ore is low.

直到最近，从矿石中提取纯铜处理同等数量的原矿石时能够比老的方式节省40％的电力，特别是当矿石中铜的比例比较高的时候。

In order to separate copper from Huili lead-zinc complex sulphide ore,ore properties and separation process were investigated.

为从会理锌矿含铜的铅锌硫化矿中分选铜，对会理锌矿含铜的铅锌硫化矿进行了系统的工艺矿物学研究和选矿工艺研究。

Until fairly recently, the only way to extract purecopper from ore was by using a process that requires large amounts of electricenergy, especially if the proportion of copper in the ore is low.

直到最近，从矿石中提取纯铜的唯一方法是通过一种需要大量电力的流程，特别是当矿石中铜的比例比较低的时候。

In this thesis, the method of combining neural network with Expert System has been used for fault diagnosis in ore grinding firstly, while wavelet analysis is also used for signal process. Ore Grinding Intelligent Fault Diagnosis Consult System is developed.

本文根据磨矿生产过程中的故障特点，首次将人工神经网络与专家系统相结合的思想和方法运用于磨矿生产过程中的故障诊断和故障处理咨询，并把小波分析技术应用于信号的处理，并开发了磨矿智能故障诊断咨询系统，发展了磨矿系统的故障诊断理论。

These types show certain differences in compositional characteristics of trace elements and rare earth elements and were formed respectively at different ore forming stages of gold, being evolutional products of gold in the process of ore forming process.

它们在微量元素和稀土元素的组成特征上有一定的差异，分别形成于金的不同成矿阶段，是金在成矿作用过程中演化的产物。

On the basis of development of the iron ore concentration technologies in recent years in our country,the general situation of research and application of new equipment and new process for iron ore concentration is presented.

随着我国经济的高速发展，国内对铁矿石的需求量越来越大，近年来，铁矿石进口量大幅增长，2000年进口量6 997万t，2002年增长到1.11亿t，2004年达到2.08亿t。这在一定程度上引发了世界范围内的铁矿石价格暴涨，造成了外汇的大量流失。

The application of flotation column to iron ore processing and the process circuit adaptable to red iron ore of Dongshao Mine are introduced with experimental data .

通过浮选柱在东鞍山红矿的实验室研究，探讨了浮选柱在铁矿的应用和适合东鞍山红铁矿的工艺流程。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。