英语词汇“black alum”的读音、翻译、释义、用法及例句-开邑网

词汇	black alum
释义	black alumblack alum1.■黑矾
随便看	sealed orders sealed outer housing sealed package sealed pad sealed pattern sealed photodiode sealed plug sealed plug sheathed plug sealed pore sealed porosity sealed pressure balance sealed proposals sealed pump sealed pumped vacuum system sealed pumpless vacuum system sealed quench furnace sealed radioactive source sealed rectifier sealed refrigeration compressor sealed relay sealed roller bearing sealed roller bearing bit sealed room elevating operation platform sealed rotor sealed sample

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