The research of this paper can improve and perfect technology and method of impact tapping.
本文的研究结论对于改进和完善冲击攻丝的技术和方法具有理论上的指导作用。
The fast development of embedded system has also provided perfect technology for this research recently.
而近年来嵌入式系统技术的飞速发展也为展开这类研究提供了良好的技术条件。
The so-called no perfect technology, vacuum freeze drying technology of the main disadvantages of high cost.
正所谓没有完美的技术，真空冷冻干燥技术的主要缺点是成本高。
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