在总结前人经验的基础上，通过平板堆焊实例利用直接法同时计算焊接温度场和应力场，模拟出了焊接过程。
Based on summing up others' experience, this paper research the direct method to calculate and simulate the temperature and stress field at the same time through a board surfacing welding sample.
梳理汉代至清代各历史时期的隶定情况，总结前人隶定的经验，对今天的古文字隶定可以起到一定的参考作用。
To sort out and summarize the study from the Han Dynasty to the Qing Dynasty will be referential to today's research of Liding characters.
本文在总结前人研究的基础上，结合四年的实践经验，提出了一种镀镍液净化新工艺。
A new process for purification of nickel electrolyte was advanced based on previous studies and the author's 4 years experience in nickel electroplating.
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