The determination result reveals that major pollutants, such as soil dust, coal-burning ash, cement from construction sites, has accounted for 71% in total TSP pollution, next, combustion of coal and oil for 20.0%, finally vehicle exhaust for 6.0%.
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Burning coal is nasty business, concentrating all kinds of toxic metals and resulting in potentially deadly fly ash.
烧煤是一件危害极大的事，释放各种有毒金属，并导致潜在的致命灰尘。
Atmospheric Marine aerosol was derived from seawater gaseous substance soil dust ash fly from burning coal ash fly from burning fuel and industrial waste at dalian sea area.
结果表明，大连海域大气气溶胶物质主要来自海水、气态物、土壤尘、煤烟尘、燃油灰和工业废料。
Bearing ring driving chain for discharging ash on burning coal boiler abruptly rupture in operation.
在燃煤锅炉中，用于驱动排灰链条的轴承环，在运行过程中突然断裂。
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