自じ記き湿しつ度ど計けい

noun

self-registering hygrometer; recording hygrometer

A technical instrument that automatically records humidity over time. Used in meteorology, laboratories, and industrial settings.

• 気き象しょう台だいでは自じ記き湿しつ度ど計けいを使つかって湿しつ度どの変へん化かを記き録ろくしている。

  At the weather station, they use a self-registering hygrometer to record changes in humidity.