The research idea in the paper can offer some constructive inspirations to modularized realization, regroupment and avoidance of iterative development of sonar system.

本文的研究思路可以为声纳系统的模块化实现、重组，避免系统的重复研制提供了有益启示。

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Farming is threatened by a drought in the north-east, and by the regroupment policy, which has resulted in peasant farmers losing access to their fields.

ECONOMIST: Burundi