Quality control technicians monitor virtually all manufactured products to assure that they function properly and are free of defects.
实际上，质量控制员监督着所有商品的产出，保证商品功能齐全，没有瑕疵。
Some aeronautical and aerospace technicians specialize in avionics (navigational and communications equipment), flight testing, or quality control.
一些航空专家专攻于航空电子技术(导航及通讯设备)，飞行测试，质量管理。
Some aeronautical and aerospace technicians specialize in avionics (navigational and communications equipment), flight testing, or quality control.
一些航空专家专攻于航空电子技术(导航及通讯设备)，飞行测试，质量管理。
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