The paper discusses condition of Yang stem weevil in NeHe and puts forward control measure.

本文论述了讷河市杨干象甲发生现状，并提出了治理对策。

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This paper introduces the geological features about porcelain clay in NeHe city, and puts forward the exploitation and application prospects according to the economic feature of NeHe city.

介绍了讷河瓷土矿的地质特征、赋存状态，并结合当地经济特点，展望了瓷土矿的应用前景。

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