English translation of '硬度'

名

1. hardness
   ⇒ 这种木头硬度不高。 (Zhè zhǒng mùtou yìngdù bù gāo.) This kind of wood is not hard enough.
   ⇒ 这种水硬度太高，不适合饮用。 (Zhè zhǒng shuǐ yìngdù tài gāo, bù shìhé yǐnyòng.) This kind of water is too hard: it's not suitable for drinking.