In strategic cost management, strategic cost driver analysis is of great importance to improve the performance of strategic cost management.
而在战略成本管理中，成本动因分析对于提升战略成本管理的效果具有重要的作用。
The acoustic modal analysis of cavity is the important matter on vehicle NVH performance study. Identifying system mode is of importance to avoid acoustic resonance and reduce interior noise.
车室声学模态分析是汽车NVH特性研究的重要内容，识别系统模态对避免声学共振、降低车内噪声有重要意义。
The bad spurious performance is the major problem that restricts the applications of DDS, so the theoretical and practical analysis attaches importance to the spectrum performance of DDS.
由于杂散性能较差是DDS应用受限的主要原因，本文从理论和实际应用两个方面着重分析了实际参数DDS的输出频谱特性。
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