envelope

zarf

Özellikle postayla göndermek için mektup veya kart konulan yassı kâğıt kılıf.

Basit İngilizce açıklama: A flat paper cover that holds a letter or card, especially when you send it by post.

• Put the letter in an envelope.
• She wrote my address on the envelope.
• Who sent this empty envelope?

Sık kullanılan kalıplar: sealed envelope, open an envelope, envelope address, paper envelope

kılıf, zar

Bir şeyi tamamen çevreleyen tabaka veya dış örtü.

Basit İngilizce açıklama: A layer or outer cover that surrounds something completely.

• A protective envelope surrounds the cell.
• The balloon’s envelope was filled with hot air.
• The planet has a thin envelope of gas.

Nasıl kullanılır: an envelope of something (An envelope of hot gas surrounds the star.)

Eş anlamlılar: covering, outer layer

Sık kullanılan kalıplar: outer envelope, protective envelope, envelope of gas

çalışma sınırları, uçuş zarfı

Bir makine veya sistemin güvenli ve düzgün çalışabildiği sınırlar.

Basit İngilizce açıklama: The limits within which a machine or system can work safely and properly.

• The aircraft stayed within its flight envelope.
• Engineers tested the motor’s operating envelope.
• Flying outside the envelope can damage the aircraft.

Nasıl kullanılır: within/outside the envelope (The pilot kept the aircraft within its flight envelope.)

Eş anlamlılar: operating limits

Sık kullanılan kalıplar: flight envelope, operating envelope, performance envelope