硬度
Hardness refers to the degree or level of how hard a material is, often measured scientifically. It is commonly used to describe the physical properties of minerals, metals, or the mineral content in water (water hardness).
Ejemplos
3 de 5この地域の水道水は硬度が高いです。
The tap water in this area has high hardness.
製品の品質を保つために、金属の硬度を測定します。
To maintain product quality, we measure the hardness of the metal.
この石、硬度がすごくて全然削れないよ。
This stone is so hard (high hardness) that I can't scrape it at all.
Familia de palabras
Truco para recordar
The first kanji 硬 (hard) contains the radical for stone (石). Think of measuring the 'degree' (度) of a 'stone' (石).
Quiz rápido
ダイヤモンドはすべての鉱物の中で最高の___を誇る。
¡Correcto!
La respuesta correcta es: 硬度
Ejemplos
この地域の水道水は硬度が高いです。
everydayThe tap water in this area has high hardness.
製品の品質を保つために、金属の硬度を測定します。
formalTo maintain product quality, we measure the hardness of the metal.
この石、硬度がすごくて全然削れないよ。
informalThis stone is so hard (high hardness) that I can't scrape it at all.
モース硬度は、鉱物の引っかき傷に対する耐性を示す尺度である。
academicThe Mohs scale of hardness is a measure indicating a mineral's resistance to scratching.
弊社は、硬度1000以上の超硬材料を専門に扱っております。
businessOur company specializes in cemented carbide materials with a hardness of over 1000.
Familia de palabras
Colocaciones comunes
Frases Comunes
硬度成分
hardness components (minerals in water)
鉛筆硬度
pencil hardness (used for coatings)
ビッカース硬度
Vickers hardness
Se confunde a menudo con
Pronounced the same (kōdo), but '高度' means altitude or high-level, whereas '硬度' means hardness.
'Katasa' is a general word for hardness used in daily life, while 'Kōdo' is the technical/scientific term.
Notas de uso
Use 'kōdo' when discussing technical specifications, water quality reports, or mineralogy. In casual conversation about how hard an object feels to the touch, 'katasa' is more natural.
Errores comunes
The most common mistake for learners is writing the kanji for altitude (高度) instead of hardness (硬度) because they share the same reading.
Truco para recordar
The first kanji 硬 (hard) contains the radical for stone (石). Think of measuring the 'degree' (度) of a 'stone' (石).
Origen de la palabra
A Sino-Japanese compound (kango) consisting of 硬 (hard/stiff) and 度 (degree/limit/measure).
Patrones gramaticales
Contexto cultural
Water hardness is a frequent topic in Japan because Japanese tap water is almost exclusively soft water, which affects the taste of tea and rice.
Quiz rápido
ダイヤモンドはすべての鉱物の中で最高の___を誇る。
¡Correcto!
La respuesta correcta es: 硬度
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