However, many of the analytical problems involved are similar and most of the techniques of analysis and syntheses and methods of test are common to all branches of control engineering.
然而，所涉及到的许多分析问题是类似的，并且对于控制工程的所有分支来说，大多数的分析、综合技术与测试方法都是相同的。
Methods Suspension quantitative germicidal test and physicochemical analysis method were used to carry out laboratory observation.
方法用悬液定量杀菌试验和理化分析方法进行了实验室观察。
Methods Suspension quantitative germicidal test and physical and chemical analysis methods were used to carry out laboratory observation.
方法采用悬液定量杀菌试验和理化分析方法进行了实验室观察。
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