사용됐던

In a sentence

• 이 프로그램은 과거에 교육 목적으로 사용됐던 소프트웨어입니다.

  This program is software that was used for educational purposes in the past.

  Here, '사용됐던' indicates that the software was utilized before for educational usages and also implies that it is recognized as such.

• 저의 첫 번째 차는 오래된 기술로 사용됐던 부품으로 만들어졌습니다.

  My first car was made with parts that were used with older technology.

  In this case, '사용됐던' denotes that the car parts were used in the applications of outdated technologies, highlighting indirect past usage.

• 박물관에서는 전쟁 시기에 사용됐던 무기들이 전시되고 있습니다.

  In the museum, weapons that were used during wartime are being exhibited.

  Here, '사용됐던' signifies that the weapons were employed in warfare and emphasizes historical usage.