本实用新型结构的导流罩对于改善声呐工作环境，提 高声呐作用距离具有重要意义。
The dome of the utility model has important significance on improving working environment of sonar and increasing working distance of sonar.
本实用新型结构的导流罩对于改善声呐工作环境，提 高声呐作用距离具有重要意义。
The dome of the utility model has important significance on improving working environment of sonar and increasing working distance of sonar.
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