A1 noun خنثی #2,706 رایج‌ترین

直径

chokkei [tɕokːeː]

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
1

このピザの直径は30センチです。

The diameter of this pizza is 30 centimeters.

2

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.

3

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

اسم
直径
مرتبط
半径
💡

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

1

このピザの直径は30センチです。

everyday

The diameter of this pizza is 30 centimeters.

2

太陽の直径は、地球の約109倍です。

formal

The diameter of the sun is approximately 109 times that of the Earth.

3

ねえ、このボールの直径ってどれくらい?

informal

Hey, what is the diameter of this ball?

4

円の面積を計算するには、直径ではなく半径が必要です。

academic

To calculate the area of a circle, you need the radius, not the diameter.

5

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。

business

Please ensure the diameter of this pipe is 50mm according to the standards.

خانواده کلمه

اسم
直径
مرتبط
半径

ترکیب‌های رایج

直径を測る to measure the diameter
直径5センチ 5cm in diameter
直径が大きい to have a large diameter
最大直径 maximum diameter
直径を計算する to calculate the diameter

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

直径 vs 半径

Hankei (radius) is half the distance of the diameter (chokkei).

直径 vs 円周

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

Used as a standalone noun. Often follows the pattern [Noun] + の + 直径. Can be followed directly by measurements (e.g., 直径10cm).
🌍

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

لغات مرتبط

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粒子

A1

A 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

A1

Refers 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

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A 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

A1

A 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

A1

A 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

A1

A 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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