The essay deals with nonchromium electrochemical polishing on aluminum and aluminum alloy . Against the traditional method ,it developed an assembly additive(AH-1)to replace chromic acid .
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The traditional method of leakage detecting is inflexible, tending to cause mistakes, going against data storage and analysis.
传统的测漏方法操作不灵活，容易产生误判，而且不利于数据的存储分析。
To against the defects in application of traditional fault tree, the fault diagnosis method of establishing system fault tree based on bond graph mode is researched.
针对传统故障树的生成及应用缺陷，研究了基于键合图模型的新型故障树故障诊断方法。
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