The merits of the acetylene gas and the defects of new type of welding gas are completely mixed together on the aspect of theory and practice.
理论和实践上把乙炔气的优点和新型焊割气存在的缺点完整的捏合在一起。
Because many of circuit board under test are mixed-signal type, the diagnostics database, which is the core of the software, is built by a method, namely Discrete Event Systems theory.
针对待测电路板许多属于数模混合类型，作为软件核心部分的测试诊断数据库的建立采用了离散事件系统法。
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