首先从技术方面来说,技术是决定产品质量好坏的关键因素,但是国外厂商出于技术保密，一些影响可靠性的关键技术如精密加工技术、密封技术、焊接技术等并不肯轻易外泄，国产化的国外仪器未必就是原产品技术一致,导致产品的性能不够稳定和可靠.同时,产品技术更新的周期慢,国内厂商缺乏对产品关键技术的研究,不能独立地对产品进行升级换代,往往通过引进外国技术来实现一代产品的更新,引进后又不能很好的消化吸收.
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