The surfactant is an important component of phenolic foam plastics.
表面活性剂是酚醛泡沫塑料的重要组成部分。
Each case is lined with foam plastics in order to protect the goods against press.
箱子里垫有泡沫塑料以免货物受压。
Each case should be lined with foam plastics in order to protect the goods from pinch.
每个箱子都应内衬泡沫塑料,以便货物不受挤压。
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