查询词典 mining engineering

This article expound data minings definition、character、function,and introduce tools of data mining,and discuss methods of data mining and relation between data mining and knowledge finding.

本文阐述了数据采掘的定义、特点、类型、功能、发现的知识类型及其发展趋势，介绍了数据采掘的工具，探讨了数据采掘的各种方法以及数据采掘与知识发现的关系等问题。

Rio Tinto is Spanish,which means yellow river.In 1954 ,the company sold most of the Spanish business.From 1962 to 1997,the company merged with a number of influential global mining companies,and in 2000 the successful acquisition of the North Australian mining companies have become in the exploration,mining and processing mineral resources ,the global leader.

Rio Tinto是西班牙文，意为黄色的河流。1954年，公司出售了大部分西班牙业务。1962年至1997年，该公司兼并了数家全球有影响力的矿业公司，并在2000年成功收购了澳大利亚北方矿业公司，成为在勘探、开采和加工矿产资源方面的全球佼佼者。

The results show that the ranges of secondary stress distribution have differences corresponding to different wall rock conditions of mining tunnel; but the principal stress distribution transits from compressive stress centralized in mining tunnel sidewall to tensile stress centralized in mining tunnel vault and floor.

研究结果表明，围岩条件不同的采矿巷道其二次应力分布影响范围有所差异，但围岩主应力总体上表现为由巷道边墙中下部位的压应力集中带逐步过渡到拱顶、底板一定范围内的拉应力集中带。

When it transfers the residual rights and interests of the final unproved mining area among the group of the mining areas, the difference between the transfer income and the book value of the unproved mining area shall be recorded in the profits and incomes of the current period.

转让该矿区组最后一个未探明矿区的剩余矿区权益时，转让所得与未探明矿区权益账面价值的差额，计入当期损益。

If it transfers parts of the rights and interests of the mining area, in the light of the proportion between the fair value of the transferred rights and interests and the fair value of the retained rights and interests, it shall calculate and determine the book value of the transferred portion of rights and interests of the mining area, and the difference between the transfer income and the book value of the transferred rights and interests of the mining area shall be recorded in the profits and losses of the current period.

转让部分探明矿区权益的，按照转让权益和保留权益的公允价值比例，计算确定已转让部分矿区权益账面价值，转让所得与已转让矿区权益账面价值的差额计入当期损益。

It was shown that coal seam floor failure depth of working face 2121 was 32.5 to 5 m, approximately three times as deep as that of shallow working face(in genera l,9.15 to 12.0 m). Coal seam floor failure depth increased with mining depth. Potential risk of water inrush through coal seam floor of working face 2121 is much higher for deep mining than for shallow mining.

试验结果表明：该工作面底板破坏深度为32.5~35 m，比300 m采深以内的工作面实测深度(9.15~ 12.0 m)增加2倍以上，说明随着开采深度的增加，煤层底板采动破坏深度呈明显增大的趋势，因此，在水压和破坏深度二者同时增加的条件下，2121工作面深部煤层开采的突水危险性远远大于浅部煤层。

Today the Trinities still bear the scars of extensive gold mining operations, ranging from placer mining that rerouted river and stream beds to a scattering of abandoned mining tunnels, some of which were operated into the 1930s.

今天，特里尼迪山上淘金留下的创伤依然无处不在，从河流和河床的改道，到无处不在的废弃金矿。有些金矿一直开采到20世纪30年代。

Today the Trinities still bear the scars of extensive gold mining operations, ranging from placer mining that rerouted river and stream beds to a scattering of abandoned mining tunnels, some of which were operated into the 1930s.

直至现在我们还能看见采金给这片地方带来的伤痕，对藏金地的大面积的搜索留下了许多废弃的矿井，变更河床以及溪床的水流路线而注入其中，它们有些开槽于19世纪30年代。

Today the Trinities still bear the scars of extensive gold mining operations, ranging from placer mining that rerouted river and stream beds to a scattering of abandoned mining tunnels, some of which were operated into the 1930s.

直到现在特里尼特斯还饱受修砌挖金矿井时带来的创伤。从改变河流河床的采砂矿到分布在不同地方的废弃了的挖矿隧道，其中有些隧道还是20世纪30年代才挖的。

To settle the traditional conflict between aquifer protective mining, and to enhance the coal recovery ratio to the maximum, based on the protection mining technique in longwall coalface with rapid mining.

为解决浅埋煤层保水与采煤这一矛盾，并最大限度的提高煤炭资源回收率，神东矿区上湾煤矿51201大采高长壁综采工作面进行了保水开采工业性试验。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。