vitreous-humor
发表于 2025-4-2 20:10:06
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除草剂
发表于 2025-4-3 03:04:59
Health aspects of burning coal with a high arsenic content: the Central Slovakia experience,In this context substantially less attention has been paid to the role played by trace elements present in emissions of such powerplants. The trace element content of coal is known to vary with the specific geological conditions of mines (e.g. Kaakinen and Jorden, 1974; Bezacinsky .., 1984).