| 摘要 |
An environmentally compliant cleaning solvent for removing commercial aircraft hydraulic fluid comprises from about 25 to 35 volume percent perfluorocarbon with from about 4 to 8 carbons in the alkyl chain, from about 25 to 35 volume percent hydrochlorofluorocarbon with about 2 to 5 carbons in the alkyl chain; and the balance petroleum distillates with from about 5 to 9 carbons in the alkyl chain.
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