英语词汇chemical precursors怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	chemical precursors
释义	chemical adj — 化学品 adj • 化工 adj • 化学性 adj precursor n — 前兆 n • 前驱体 n • 前奏 n precursor — 前身 • 先声 • 前辈
随便看	duration 2009 to 2010 duration: 45s->90s duration: 45s->90s duration after which duration-amplitude duration and extension duration and scope duration and termination duration and timing duration approx duration based duration between duration bonds duration by day duration calculation duration can be duration change duration compliance duration control duration credit duration date duration decreased duration dependence duration depending on duration depends

英汉双解词典包含2273206条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。

chemical adj —