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research octane number
释义
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octane rating
research octane number
research octane number
[
ri′sərch ′äk‚tān ‚nəm·bər
]
(engineering)
An expression for the antiknock rating of a motor gasoline as a guide to how vehicles will operate under mild conditions associated with low engine speeds.
See
RON
See
RON
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更新时间:2025/6/24 12:07:54