什么是HELE煤炭技術(shù)？高效低排放（HELE）技術(shù)是一組不同的技術(shù)，用于提高燃煤電廠的效率，從而減少二氧化碳（CO 2）和其他溫室氣體（GHG）排放，以及非GHG排放物，如氮氧化物（NOx）、二氧化硫（SO 2）和顆粒物（PM）。

What are HELE coal technologies? High efficiency low emissions (HELE) technologies are a group of diverse technologies developed to increase the efficiency of coal-fired power plants, therefore reducing carbon dioxide (CO 2 ) and other greenhouse gas (GHG) emissions, as well as non-GHG emissions such as nitrogen oxide (NOx), sulphur dioxide (SO 2 ) and particulate matter (PM).