This paper analyzed some hydraulic pressure design defects that cause the equipment breakdown, and proposed the improvement program.

文章分析了导致设备出现故障的几种液压设计缺陷，并提出了改进方案。

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Then, the matching design can be accomplished by means of impact load spectrograms so as to perform the optimal structural design and to make further improvement on dynamic strength program.

再利用冲击载荷谱图作为实现匹配设计的技术途径，以期实现最佳的结构设计，从而进一步完善了动力强度设计程序。

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The paper is concerned with the improvement of old portable data acquisition instrument, which contains the program migration, the design of USB transmission and noise analysis modules.

本论文主要是对原先的便携式数据采集仪进行改进，先进行程序移植，然后完成了USB通讯和噪声分析这两个模块的设计。

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