precursorsn.先驱( precursor的名词复数 ); 先行者; 先兆; 初期形式; 例句:1.Despite years of searching for earthquake precursors, there is currently no method toreliably predict the time of a future earthquake. 虽然对地震前兆的研究已有多年,但至今仍没有办法能够可靠的预计到未来地震发生的时间。 2.Finally, phagocyte precursors may undergo malignant transformation, which results inacute or chronic myelogenous leukemia. 到最后,吞噬细胞前体可能发生恶变,导致急性或慢性骨髓性白血病。
precursor chemicals前体化学品In such circumstances, kunming precursor chemicals administration is passive with nonlocal administration.在这样的条件下,昆明易制毒化学品的行政管理也就处于被动配合外地行政管理的态势。
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