单词	pyrosulfuric acid
释义	pyrosulfuric acid noun py·​ro·​sulfuric acid "+…- : an unstable, crystalline acid H2S2O7 that is usually handled commercially as a thick oily fuming liquid, that is formed by the union of sulfur trioxide with sulfuric acid, that is a chief component of fuming sulfuric acid, and that is converted to sulfuric acid when mixed with water called also disulfuric acid compare oleum Word History Etymology International Scientific Vocabulary pyr- + sulfuric
随便看	focus lamp focus on focusable focused focused (on) focused on focuser focusers focuses focuses (on) focuses on focusing focusing (on) focusing cloth focusing coil focusing glass focusing on focusless focussed focusses focussing focussings FOD fodder fodder beet

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