The “First China International Truck Fuel Contest†recently presented eight awards to Dongfeng Commercial Vehicle Company, becoming a veritable “fuel-saving champion†and the biggest winner of the current truck fuel-saving competition. It is reported that Dongfeng Commercia
In 2013, the lighting market in East China has ushered in LED transformation. Some markets have tried the transformation of sweetness, such as Shanghai and Jiangsu. Some markets feel the pain of transformation, such as Shandong and Zhejiang, but regardless of the outcome, the lighting market in Eas
Hunan somewhere tungsten, molybdenum, bismuth, iron, fluorite complex multi-metal mine is mine Shizhuyuan after another of the same type of large skarn polymetallic ore body, ore and more valuable mineral content, disseminated complex relationships, ore type at home and abroad rare, valuable minera
4) After the mine waste is mixed in the ratio about 10% of the normal mining, additional operations at a preselected magnetic pulley powder ore bin, throwing yield 8% to 12% addition, the dry tailings containing about 10% iron grade, into The grade of ground ore is increased by 1~2%, which reduces
To reduce the ventilation resistance of the roadway, the following methods can be adopted: First, brush the large well section, use multiple lanes for parallel ventilation; use round or arched section of the roadway; ensure that the wall of the well is smooth; reduce the wind speed of the roadway;
Principle Corrosion reduction method is a method for selective addition to iron, the first oxide by solid titanium iron ore is reduced to metallic iron phase, and an aqueous electrolyte solution with the reduced ilmenite iron rust and separated, so that TiO 2 is rich in synthetic rutile. This meth
First, the safe fall protection measures of the slippery shaft, such as lighting, grid screen, manhole cover or railing, must be perfect and reliable, and often checked. In the course of use, it is found that the damage of the fall arrester should be repaired in time. 2. Safety warning signs, safe
In flotation production, common flotation machines can be divided into: according to the way they supply and agitate the pulp: 1. Mechanically agitated flotation machine which inflates and agitates the slurry by the rotation of the impeller or the return rotor. Such as XJK type (A type) flotation
Enough gold, English as FINE GOLD, its content was 99.9%, gold jewelry is very popular in our country have been outside, and has a long history. However, in recent years, with the advancement of science and technology, new technologies and new processes have been continuously applied. The gold jewe
Abstract: Storage testing technology is the most effective method to record the parameters of moving objects in special environments. This article describes how to develop a storage test system based on ARM7 LPC21xx. The Philips 16/32-bit microcontroller LPC21xx is based on a 16/32-bit ARM7TDMI-S CP