mines相关论文
南非金伯利是世界知名的德比尔斯钻石公司总部所在地,是世界上最早(1869年)发现金伯利岩型金刚石原生矿床的地方,现在世界上一些最......
From the year of 1949 to the present, the China national coal output has been increasing quickly and became first in the......
China nonferrous metals industry is supported by the mining of the metals resources. The nonferrous metals mining indust......
30 provinces in China almost have lead zinc resources,relatively concentrated in 5 mining areas of Lanping and Qingling ......
In order to help the domestic copper producersout from the difficulty of raw material supplyshortage, China will implem......
期刊
Li Yang made his directorial debut in 2003 with the award-winning Blind Shaft,a movie about China’s coal mines.Four yea......
<正>1 Objectives of the UNECE best practice guidance document Technological advances have made it possible to significan......
油页岩在干馏前用重介质旋流器除去占原矿70%的脉石;油页岩中的油份有70%得到回收。 Roberts及Schaefer资源公司在其伊利诺斯州的......
In November 2011, there is comfortable weather in India. The first International Conference on Colored Gemstones entitl......
Various nodes,logistics,capital flows,and information flows are required to make systematic decisions concerning the ope......
Ventilation fans are one of the most important pieces of equipment in coal mines. Their performance plays an important r......
A microseismic monitoring system was used in the Donggua Shan underground copper mine, and its application was intro- du......
Hundreds of mine flooding accidents have occurred in China since the 1950s. These flooding accidents result in submerged......
Blasting and breaking of hard roof are main inducing causes of rock bursts in coal mines with danger of rock burst,and i......
Using GIS, GPS and GPRS, a dynamic management system of ore blending in an open pit mine has been designed and developed......
An ultra-wideband impulse radar was studied for the detection of buried life in coal mines. An improved Empirical Mode D......
A scraper conveyor is a kind of heavy machinery which can continuously transport goods and widely used in mines,ports an......
The activity levels of long-lived radionuclides in minerals have received more and more concern for the public health. T......
网络环境下,电子资源服务在图书馆占有举足轻重的地位,哪些用户在利用这些资源,他们是如何利用的以及利用这些资源的目的是什么,这......
