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).
أمثلة
3 من 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.
عائلة الكلمة
نصيحة للحفظ
The first kanji 硬 (hard) contains the radical for stone (石). Think of measuring the 'degree' (度) of a 'stone' (石).
اختبار سريع
ダイヤモンドはすべての鉱物の中で最高の___を誇る。
صحيح!
الإجابة الصحيحة هي: 硬度
أمثلة
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.
عائلة الكلمة
تلازمات شائعة
العبارات الشائعة
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
يُخلط عادةً مع
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.
ملاحظات الاستخدام
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.
أخطاء شائعة
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.
نصيحة للحفظ
The first kanji 硬 (hard) contains the radical for stone (石). Think of measuring the 'degree' (度) of a 'stone' (石).
أصل الكلمة
A Sino-Japanese compound (kango) consisting of 硬 (hard/stiff) and 度 (degree/limit/measure).
أنماط نحوية
السياق الثقافي
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.
اختبار سريع
ダイヤモンドはすべての鉱物の中で最高の___を誇る。
صحيح!
الإجابة الصحيحة هي: 硬度
مفردات ذات صلة
كلمات ذات صلة
粒子
A1A very small piece or bit of matter, such as a grain of sand, a speck of dust, or a microscopic unit like an atom or molecule. It is commonly used in scientific contexts to describe the fundamental components of a substance or in photography to describe the grain of an image.
電子
A1Refers to an electron in a scientific context or, more commonly, signifies that something is digital or electronic. It is frequently used as a prefix to describe modern technology replacements for traditional items like books or money.
中性子
A1A neutron is a subatomic particle found in the nucleus of an atom that carries no electric charge. It has a mass slightly larger than that of a proton and is essential for the stability of atomic nuclei.
元素
A1A chemical element, which is a fundamental substance that cannot be broken down into simpler substances by chemical means. It refers to the basic building blocks of matter listed on the periodic table.
化合物
A1A substance formed when two or more chemical elements are chemically bonded together. It is used primarily in scientific contexts to describe materials with a fixed ratio of components.
混合物
A1A substance made by combining two or more different materials without a chemical reaction occurring. It can be used in scientific contexts to describe chemical blends or in general contexts to describe a physical combination of items.
溶液
A1A liquid mixture in which a substance (solute) is uniformly dissolved in another substance (solvent). It is most commonly used in chemistry to describe liquids like salt water or chemical mixtures used in experiments.
溶媒
A1A substance, typically a liquid, in which another substance (the solute) is dissolved to form a solution. In a chemical context, it acts as the medium that facilitates the breaking down of particles.
溶質
A1A solute is a substance that is dissolved in another substance (called a solvent) to create a solution. In a mixture like salt water, the salt is the solute because it is the part that gets dissolved.
窒素
A1Nitrogen is a colorless, odorless chemical element that makes up about 78 percent of the Earth's atmosphere. It is essential for all living things and is widely used in fertilizers and industrial cooling as liquid nitrogen.
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