Reselection method Reselection method is to divide the mineral beneficiation composition according to the difference in relative density (specific gravity generally known) is. Mineral particles of different densities are subjected to hydrodynamic forces and various mechanical forces in the moving m

On October 31, 2017, Jingdong Logistics announced the introduction of thousands of new energy vehicles, which will be put into use in more than 10 large and medium-sized cities in Beijing and Shanghai. In the next five years, Jingdong Logistics plans to replace hundreds of thousands of vehicles in

Model NO.: Xw0004 Power Supp

Recently, Fujitec electric car and domestic well-known battery brand BAK held a meeting on the lithium battery electric vehicle technology. “Why is a lithium battery better than a lead-acid battery?” “How to extend the life of a lithium battery?” Dr. Mao Huanyu, general mana

Recently, the Ministry of Industry and Information Technology has identified and announced a list of 141 pilot companies for industrial enterprise brands, including 27 oil and chemical companies including PetroChina Lanzhou Petrochemical Company and Hunan Xiangjiang Coatings Group Co., Ltd. The de

As we all know, there is less than a month to October, the pace of the incandescent light bulbs withdrawing from the market is getting tighter, and LED manufacturers have introduced LED bulbs. Throughout the development of the LED industry in recent years, especially the LED lighting part, not only

Which "fake configuration" on the car is awkward? The car does not look good, is an important factor that many people choose to buy it, how to spend 100,000 yuan to buy a car that looks like 300,000? Of course, due to the cost constraints, many cars will design some "fake configura

Ultra-high pressure piston pumps are often used in the industry. In order to let everyone know more about ultra-high pressure piston pumps, the following Xiaobian will explain the scope of use and the sealing conditions of ultra-high pressure piston pumps for everyone. help: Ultra-high pressure pi

Zhongxin.com, Hangzhou, June 27th (trainee reporter Shao Siwei Wu Jiawei) In 2008, Hangzhou, Zhejiang Province implemented the “parking new policy”, and the parking in the main urban area of ​​Hangzhou implemented the “first parking and paying” charging mode. T

1, forecast spontaneous combustion of coal layer (1) Since coal produces CO in the low-temperature oxidation stage, CO is a sensitive indicator for early exposure of fire. The CO sensor is installed in the coal mine working face returning air passage, the comprehensive coal mining road and other pl

From the scope of a falling roof and the number of casualties, common roof accidents can be divided into the following two categories. 1. Local roof accident The characteristics of local roof accidents are as follows: First, the scope is small, and the number of casualties is small (1-2 people). T

In May, under the anticipated tariff reduction, high-end car consumers generally had a wait-and-see mood... Affected by this, the domestic premium car market, especially the second-line premium car brands with a larger proportion of imported cars, saw sales decline. On the day of the Dragon Boat