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polyacetaldehyde
The main composition of this wastewater is acetaldehyde, paraldehyde, metaldehyde, pyridine and some acetaldehyde polymers.
某化工厂废水主要成份为乙醛、少量三聚乙醛、四聚乙醛、吡啶和一些乙醛聚合物。
youdao
Clouds with extremely cool water are mixed with man-made ice crystals, such as silver iodide and metaldehyde crystals.
VOA: special.2011.01.11
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