pent·ox·ide /pɛntˈɑkˌsaɪd/
五氧化物
pent·ox·ide /pɛntˈɑkˌsaɪd/ 名詞
五氧化物
Pen·tox·ide n. Chem. An oxide containing five atoms of oxygen in each molecule; as, phosphorus pentoxide, P2O5.
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pentoxide
n : an oxide containing five atoms of oxygen in the molecule