Hence the analysis of the noise, influential factors and method of control is necessary.
因此有必要对噪声产生的机理，影响因素和控制方法进行分析和探讨。
The dimension analysis method was applied to determine the major factors affecting the flow characteristics.
对交汇口流动的各种影响因素进行了量纲分析，确定表征流动特性的主要物理量。
The dimension analysis method was applied to determine the major factors affecting the flow characteristics.
对交汇口流动的各种影响因素进行了量纲分析，确定表征流动特性的主要物理量。
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