| 单词 | tetraethyl lead |
| 释义 | Word Frequency tetraethyl lead or tetraethyllead (ˌtɛtrəˌiːθaɪlˈlɛd) noun a colourless oily insoluble liquid formerly used in petrol to prevent knocking. Its use has been banned in most developed countries due to its toxicity. Formula: Pb(C2H5)4 Systematic name: lead tetraethyl. Former names: tetramethyl lead, tetramethyllead |
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