英语词汇“un and na numbers”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	un and na numbers
释义	UN and NA numbers UN and NA numbers [ United Nations; North America] A unique four-digit code used in international shipping to identify hazardous substances, e.g., explosives, flammable liquids, and toxic substances.
随便看	cross polarisation interference canceller cross-polarised light beam microscope cross-polar isolation cross polarization cross-polarization cross polarization discrimination cross polarization interference cancellation cross-polarization level cross polarization magic angle spinning cross polarization/magic angle spinning with dipolar decoupling cross-polarization ratio cross-polarization scattering cross-polarization using time-averaged precession frequency cross-polarized correlation cross-polarized wave cross-pole interference cross-pollinate cross-pollinated cross-pollinates cross-pollinating cross pollination cross-pollination cross-pollinations cross polymerization cross post

英语词典包含2567994条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。

UN and NA numbers