Moisture meter: An instrument to measure the moisture content of paper. Common types are dielectric moisture meter, infra-red absorption type moisture meter, etc.
水份计：测量存在于纸张内的水份含量的仪器。常用的有介电水份计，红外线吸收式水份计等。
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Common types are dielectric moisture meter, infra-red absorption type moisture meter, etc.