求翻译：智能手机行业正处于迅速变化之中，各家企业需要不断地推陈出新以保持各自的市场竞争力。因此，诺基亚未来的产品系列将是该公司保持其市场份额的关键所在。是什么意思？

Smart-phone industry is in a rapidly changing, companies need to constantly innovate to maintain their market competitiveness. Therefore, Nokia products in the future will be key to the company to maintain its market share.