abecause it does not reflect one of the biggest shifts in the international economic and trading system: the rise of China. 因为它在国际经济和贸易的系统中不反射其中一最大的转移: 中国的上升。[translate] a小的们 正在翻译,请等待... [translate] ...
According to the annual mining yield estimation of 20 million tons, the service life of this mine will be 71.3 years. There are a total of ten recoverable coal seam layers in this mine. The currently mined layers are as follows: 2–2 in the first layer and 4–2 in the second layer....
School of Public Management, Gansu University of Political Science and Law, Lanzhou 730070, China 4 School of Public Policy and Management, China University of Mining and Technology, Xuzhou 221116, China * Author to whom correspondence should be addressed. Sustainability...
“Close to 75 000 mine workers globally have died and more than one million have been seriously injured because of the accidents in the mining sector. It is estimated that many more have lost their lives as a result of tuberculosis silicosis and other poor health conditions in the mines,” ...
因此,尽管国家安监总局前几年就已要求进行了机械通风专项整治工作,但在实际工作中却很少落实到位,至今也仅仅 Mine ventilation generally does not conform to the request metal nonmetallic underground mining mine the reason that not the compulsory artificial draft achievement key point work, is because these ...
Mining of the association rules between driver electrodermal activity and speed variation in different road intersections The interaction between human factor and road environment is among the most common causes of road accidents.Physiological signals are a useful metric for p... N Distefano,S Leonardi...
Beers said it was important to get the tanker extracted because there is always the risk of a spill. In this case, all 114,000 pounds of molten sulfur remained in the tanker and, save for a small amount diesel fuel that spilled, it went as clockwork. “It took a little longer than ...
Hydrogen is an abundant element that is available for an infinite period and can be produced and combusted without CO2 emissions, thus making it suitable for use in the future net-zero economy. Furthermore, hydrogen has a high ratio of energy per mass, which makes it an excellent energy car...
Furthermore, sometimes a single factor may not be enough to cause an outcome (such as death at the traffic accident scene), but its simultaneous occurrence with other factors is the reason for the occurrence of the outcome. In other words, the risk factor is not a single variable but a ...
13th May 2013 Canada Worker buried under extracted earth at gold mine The Ministry of Labour in Ontario is investigating a crush fatality at the Eagle River gold mine of Wesdome in the Thunder Bay area where a worker was buried under a pile of earth from a mining extraction. 2nd May 2013...