详细解释:a. 突如其来的, 勇往直前的, 急促的, 径直向下的
n. 沉淀剂
【化】 沉淀剂
【医】 沉淀剂
词型变化：
副词:precipitantly英语解释：
名词 precipitant:
an agent that causes a precipitate to form形容词 precipitant:
done with very great haste and without due deliberation同义词：hasty, overhasty, precipitate, precipitous