| 单词 | petrochemical |
| 释义 | pe·tro·chemical I. 1. < a thorough petrochemical study of certain weathering profiles — F.J.Pettijohn > 2. a. < the petrochemical industry > b. < petrochemical acetone > II. < chemicals derived from petroleum and natural gas, such as ammonia, carbon black, and thousands of organic chemicals, are classified as petrochemicals — Chemical & Engineering News > |
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