| 单词 | primary reference fuel |
| 释义 | primary reference fuel [`prī´mer·ē `ref·rǝns ´fyül] MATERIALS 1. Gasoline; isooctane, n-heptane, or mixtures thereof used in the American Society for Testing and Materials-Cooperative Fuel Research gasoline test engine to determine the octane rating of commercial gasoline. 2. Diesel fuel; cetane, α-methylnaphthalene, or mixtures thereof used in ASTM-CFR diesel test engines to rate the cetane number of commercial diesel fuels. |
| 随便看 |
|
科学参考收录了103327条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。