例句與造句

1. Pliny mentions a variety of tar-like substances being used as medicine, including " cedria " and " pissinum " . " Cedria " was the pitch and resin of the cedar tree, being equivalent to the oil of tar and pyroligneous acid which are used in the first stage of distilling creosote.
2. In the nineteenth century, pyroligneous acid was used to prepare an impure aluminium sulfacetate mordant for use with cotton, but the resulting mixture was empyreumatic and Ganswindt recommended its use be abandoned in favour of purer preparations in 1899 . Empyreuma is an obsolete chemical and medical term referring to " the smell and taste associated with burning vegetable and animal matter ."
3. It's difficult to find pyroligneous acids in a sentence. 用pyroligneous acids造句挺難的
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