Then through the tooth contact spot analysis the source of the gear whine was found.
针对阶次一致的传动部件，通过接触斑点分析，最终确定了啸叫的噪声源。
Road traffic accident black-spot analysis is an important stage in the whole traffic management.
事故黑点分析处理是道路交通安全管理过程中的一个重要环节。
Road traffic accident black-spot analysis is an important stage in the whole traffic management.
事故黑点分析处理是道路交通安全管理过程中的一个重要环节。
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