pyrocellulose /,paiərә?'seljjlәjs,-lәjz/ 📖 中文释义 [机] 焦纤维 📘 English Definition(英文释义) n. nitrocellulose containing less nitrogen than guncotton; used in making smokeless powder ← pyrocatechuic acid P 字母词表 Pyrocephalus →