她赞同这些鱼壳证实了早期现代人类能够完成多任务计划，并且对于他们想要制造的成分的质量进行抽象思维。
She agrees the shells are evidence that these early modern humans could "multitask and think in abstract terms about the qualities of the ingredients that they manipulated."
在这个部分里我会描述关于制作加壳工具的质量问题。
In this installment I will cover the qualitative aspects of producing a packer.
已在显象管玻壳的质量检测中取得良好效果。
It has been successfully used for quality testing of teletron glass.
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