Underground mining and dressing equipment, the current mining depth is generally 300 ~ 800m, and individual to reach more than 1000m. The development method, according to the topography of the deposit and the ore body shape, scale and burial depth, etc., usually adopts four methods: shaft developme
The small agricultural water pump is the main irrigation and drainage machine for water used in rural areas and spring and summer sowing. In operation, failure and damage are unavoidable, so that normal pumping cannot be performed. Therefore, the poor pumping pump must be repaired and adju
Judging from the macro policies announced by various ministries and commissions this year, both the printing industry and the printing industry can benefit from this. The policies enjoyed by the printing industry are mainly reflected in the tax incentives for imported equipment and export
China Drying Network News With the introduction of bans in various countries, phthalate ester plasticizers that once dominated the plasticizer market were “strike hard,†and green non-phthalate plasticizers were expanded. The tide is coming. Recently, international green plasticizer ma
Recently, market research institutions said that the rapid development of LED lighting in Southeast Asia, in addition to benefiting from the infrastructure, the development and influence of the Association of Southeast Asian Nations has also greatly promoted. The Association of Southeast Asian Natio
The reporter recently learned from the Shanghai Society of Naval Architecture and Ocean Engineering that the research report of the Society, recommended by the Shanghai Science and Technology Association, "Research on Resource-saving and Environmentally Friendly Shipbuilding Industry Counterme
What's more amazing than the image microscopists get from the cellular world? In addition to the United States, such photographs also reveal new insights into the "way of how cells and biomolecules operate and interact." What research progresses in microscopy technology in 20
1. Experimental apparatus The experimental devices used in this study were the condensing weighing steam flow metering standard device, the negative pressure sonic nozzle gas flow metering standard device, and the quality water metering standard device. The condensing weighing steam flow metering