当这项新的回收塑料的技术被引进时，它并不受欢迎的翻译：When that happens when new techniques were introduced for recycled plastics, it was not welcome 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

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When that happens when new techniques were introduced for recycled plastics, it was not welcome

When this new recycling plastic technology is introduced, it is not welcome

When this new recycling plastic techniques were introduced, when it is unwelcome

When that happens when new techniques were introduced for recycled plastics, it was not welcome