查询词典 mining district

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。

Special mining engineering includes hydraulic mining technology, three underground mining technology, and underground coal gasification.

特殊开采工程包括水力开采技术、&三下&矿体开采技术、地下气化技术等。

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。

Take the 51201 big mining height coalface in Shangwan coal mine and the 32201 coalface in Bulianta coal mine as prototypes, the development processes of the overlying strata for these two types shallow coal face with big mining height are simulate, as the mining space increase.

分别以上湾煤矿的51201工作面和补连塔32201工作面为原型，模拟了随开采空间变化，这两类浅埋煤层大采高长壁工作面的采动覆岩导水通道的发育过程。

ABSTRACT Data mining is an important area in KDD, and mining association rules in large databases is a critical aspect of data mining resea...

数据挖掘是当前KDD中的一个重要领域，而关联规则的挖掘是数据挖掘的一个重要组成部分。

Museum's permanent exhibition -"simulated mine", its scale and rich in content, similar museums in the world is rare, he brought together the scientific, intellectual, interesting as one, the application of high and new technology and the arts each other The combination of modern means to create a display of real-borne Lane, the ancient manual mining, modern coal mining and blasting hole heading face, modern mechanized mining and geological structure as well as the heading face eight landscape.

博物馆永久的陈列——《模拟矿井》，其规模之大，内容之丰富，在世界同类博物馆中是少见的，他集合了科学性，知识性，趣味性为一体，应用了高新技术和艺术相互结合的现代展示手段来营造出逼真的媒巷，古代手工采煤，近代打眼放炮采煤和掘进工作面，现代综合机械化采煤和掘进工作面以及地质构造等八个景观。

Ning Xi, Nanshui, the deep well of the Hengqin Island, two wells, the Jin River Po in the first, and other places to stay Shishan weathered rock vein type kaolin mine has a value of the mining industry; gate six under, in, Yongfeng, Kwun Tong, the former Dongkeng Hill, Doumen's Lek Qi, Masan, and so on up to the foothills of the clay-alluvial mining for small-scale mining.

柠溪、南水、横琴岛的深井、二井、金鼎的河头埔、留狮山等地的风化岩脉型高岭土矿具有一定的工业开采价值；下栅六组、会同、永丰、官塘，前山的东坑，斗门的岐沥、马山、大托等地的山麓冲积型粘土矿可供小规模开采。

World War II: Battle of Saipan - Americans take Saipan.

1944年的今天，美国在塞班战役中拿下塞班岛。

When the scorner, the rejecter of truth, has become presumptuous; when the routine of work in the various money-making lines is carried on without regard to principle; when the student is eagerly seeking knowledge of everything but his Bible, Christ comes as a thief.{DA 635.3

当讥诮和拒绝真理的人，到了任意妄为时，当追求财利者罔顾按道义经营谋利时，当学人正在兢兢业业地研究各种知识，而单把圣经丢在一边时，基督要像贼一样来临。