| 单词 | antiknock |
| 释义 | antiknock (once / 454589 pages) nadj WORD FAMILY knock: antiknock, knocked, knocker, knocking, knocks+/knocker: knockers/knocking: knockings 1n any of various compounds that are added to gasoline to reduce engine knocking Hypo|Hyper lead tetraethyl, tetraethyl lead a clear oily poisonous liquid added to gasoline to prevent knocking chemical compound, compound (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight 2adj suppressing or eliminating engine knock in combustion engines antiknock properties antiknock rating Syn antiknocking leaded treated or mixed with lead |
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