求翻译：塑料注塑：.塑料注塑是塑料制品的一种方法，将熔融的塑料利用压力注进塑料制品模具中，冷却成型得到想要各种塑料件。有专门用于进行注塑的机械注塑机。目前最常使用的塑料是聚苯乙烯。是什么意思？

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plastic injection molding, plastic injection molding machine . One of the methods is plastic products, injection pressure will be molten plastic used to plastic products mold, cooling molding is want to various plastic parts. There are devoted to injection molding machine injection molding machine.

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Plastic injection moulding:. plastic injection molding is a method of plastic products, fused plastic using injection pressure in a plastic product die, get a variety of cooling molding plastic parts. Dedicated to injection molding machines injection molding machine. By far the most commonly used pl