单词	pyrocotton
释义	pyrocotton noun py·​ro·​cotton "+ : cellulose nitrate containing about 12.6 percent nitrogen and used in smokeless powders compare pyrocellulose Word History Etymology pyr- + cotton
随便看	formule formulisation formulisations formulise formulised formuliser formulises formulising formulism formulisms formulistic formulists formulization formulizations formulize formulized formulizers formulizes formulizing Formvar formwork formworks formy formyl Formyl Violet S4B

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