technological and quality upgrading
After Technological Upgrading 经过技术改造 Technological And Quality Upgrading 技改和品质提升 accelerate technological upgrading 加快技术改造 ..
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technological and quality upgrading
技术和质量提升
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Ruifeng switch manufacturers gather a group of avantgarde concept, skilled highly educated engineers, with particular emphasis on technological upgrading and product quality assurance.
瑞丰开关制造凝聚了一批理念前卫、技术过硬的高学历工程师，特别注重产品的技术更新和质量的保证。
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