On the other hand, more precipitation and increased moisture may lead to more risk of vector-borne diseases.

另一方面，降水和湿度的增加可能会加大病媒传播疾病的风险。

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Coordinate and synergize vector control activities lead by the pan African Tsetste and Trypanosomosis Eradication Campaign of the Africa Union.

协调和协同加强非洲联盟泛非消灭采采蝇和锥虫病运动带头开展的病媒控制活动。

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Therefore it is inevitable to lead to the problem of designing and marking vector symbols.

因此，开发过程必然涉及到矢量符号设计和标绘的问题。

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