Development on hydrological instruments is a industry of multi-techniques and big investment.
水文仪器的研制既是一个技术密集型的产业，又是一个资金密集型的产业。
In order to protect the hydrological measuring instruments and equipment from lightning striking, it is absolutely necessary for us to take proper lightning protection measures.
为防止雷击对水文测报仪器设备的毁坏，采用规范的防雷避雷措施必不可少。
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