noun
office desk; clerical desk
A desk used for office work, paperwork, or clerical tasks. Often implies a functional, business-like desk rather than a decorative or home-study desk.
新しい事務机を買って、書類を整理した。
I bought a new office desk and organized my documents.
事務机の上にはパソコンと電話が置いてある。
A computer and a telephone are on the office desk.
勉強机 is a study desk, typically used at home or school, whereas 事務机 is associated with an office environment.
Compound of 事務 (office work, clerical affairs) and 机 (desk). The reading じむづくえ follows rendaku voicing of つくえ to づくえ.