Black Friday: lifetime access is on a special offer in the app, until November 30. Black Friday: special offer on lifetime access, until November 30. Download
버랙터는 전자 회로에서 주파수를 조정하는 데 사용됩니다.beoraekteoneun jeonja hoeroneun jubaseureul jojeonghaneun de sayongdoemnida.A varactor is used to tune frequencies in electronic circuits.