直径
The distance from one side of a circle to the other, passing through the center point. It is a fundamental measurement used in geometry and daily life to describe the size of round objects like plates or pipes.
مثالها
3 از 5このピザの直径は30センチです。
The diameter of this pizza is 30 centimeters.
太陽の直径は、地球の約109倍です。
The diameter of the sun is approximately 109 times that of the Earth.
ねえ、このボールの直径ってどれくらい?
Hey, what is the diameter of this ball?
خانواده کلمه
راهنمای حفظ
The first kanji 直 (choku) means 'straight.' Think of a 'straight' line passing directly through the middle of a circle.
آزمون سریع
円の___は、半径の2倍の長さです。
درسته!
پاسخ صحیح این است: 直径
مثالها
このピザの直径は30センチです。
everydayThe diameter of this pizza is 30 centimeters.
太陽の直径は、地球の約109倍です。
formalThe diameter of the sun is approximately 109 times that of the Earth.
ねえ、このボールの直径ってどれくらい?
informalHey, what is the diameter of this ball?
円の面積を計算するには、直径ではなく半径が必要です。
academicTo calculate the area of a circle, you need the radius, not the diameter.
このパイプの直径は、規格に合わせて50ミリにしてください。
businessPlease ensure the diameter of this pipe is 50mm according to the standards.
خانواده کلمه
ترکیبهای رایج
عبارات رایج
直径に等しい
equal to the diameter
内径と外径
inner diameter and outer diameter
直径の長さ
the length of the diameter
اغلب اشتباه گرفته میشود با
Hankei (radius) is half the distance of the diameter (chokkei).
Enshū (circumference) is the distance around the circle, not across it.
نکات کاربردی
While commonly used in math, it is also frequently used when buying household items like frying pans, pots, or lightbulbs.
اشتباهات رایج
Learners often confuse 'chokkei' (diameter) with 'hankei' (radius). Also, avoid using 'nagasa' (length) alone when the specific dimension needed is the diameter of a circle.
راهنمای حفظ
The first kanji 直 (choku) means 'straight.' Think of a 'straight' line passing directly through the middle of a circle.
ریشه کلمه
From the kanji 直 (direct/straight) and 径 (path/diameter). It literally means the 'straight path' through a circle.
الگوهای دستوری
بافت فرهنگی
In Japan, many household goods are categorized by diameter using the unit 'cm' or 'mm', which is essential for home shopping.
آزمون سریع
円の___は、半径の2倍の長さです。
درسته!
پاسخ صحیح این است: 直径
واژگان مرتبط
لغات مرتبط
鹿
A1A four-legged herbivorous mammal known for its antlers and graceful movement. In Japan, they are particularly famous for roaming freely in areas like Nara Park where they are considered sacred.
鷲
A1A large, powerful bird of prey with a massive hooked bill and broad wings, known for its keen eyesight and soaring flight. In Japanese, it specifically refers to larger raptors, often serving as a symbol of strength and majesty.
鷹
A1A hawk is a bird of prey known for its sharp eyesight, curved beak, and powerful talons. In Japanese culture, it is often used as a symbol of nobility, strength, and keen perception.
鯨
A1A large marine mammal that breathes air through a blowhole and lives in the ocean. In Japanese, it refers to all types of whales, often seen as symbols of nature's vastness.
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.
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.
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.
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