Petrol fumes from car engines poison the atmosphere.
车引擎排放
烟气毒化着大气。
Petrol fumes from car engines poison the atmosphere.
车引擎排放烟气毒化着大气。
The development trends of light stabilizer were obtaining stabilizers with high-efficiency,high molecular weight,multifunction and nontoxicity.
光稳定剂发展趋势是高效、高分子量化、多功能化
无毒化。
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