LED is widely recognized as a clean and green light source. LED has long service life, energy saving, simple and convenient application, and low cost, so it is hand-held in mobile phones, MP3s, MP4s, PMPs, DSCs (digital cameras), PDAs, GPS, PNDs, game consoles, learning machines, and laptops. The pr
China Shenhua Energy Co., the country’s biggest coal miner, said profit jumped to the highest level since 2012 as robust demand and government efforts to rein in overcapacity helped bolster prices.Net income climbed to 47.8 billion yuan ($7.6 billion) from 24.9 billion yuan a year ago, the Beijing-b
At present, the LED miner's lamp is a mixed bag, and the LED indicator lamp is recommended as the technical indicator:1 IntroductionKL-type LED cold light source safe miner's lamp is based on lithium iron phosphate battery pack as power supply, positive and auxiliary double LED as cold light source,
Chile is pushing power companies to phase out coal plants following a government announcement earlier this year that the country wouldn’t build coal-fired power plants unless they were equipped with carbon capture and storage (CCS).The decision, part of a wider national plan to transition to cleaner
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