molly-guard

短语

发音

UK /ˈmɒli ɡɑːd/
US /ˈmɑli ɡɑɹd/

词形变化

molly-guards 复数 molly-guards

别名

mollyguard

释义与例句

n.
  1. 1.

    A physical barrier to protect something from unwanted contact, especially a shield to prevent accidental tripping of an emergency shutdown or power switch.

    There is a plastic molly-guard covering the escalator's shutdown button to prevent little kids from pushing it and stopping the escalator.

    1998 August 10, kensmark, “Vi versus Word. The pros and cons (or why does Vi remiond me of a bigger version of notepad?)”, rec.arts.sf.composition, Usenet, Therefore, we have many "molly guards," which are kludged covers that protect the on/off switch and keep you from hitting it by accident.

词源

From Molly (female given name) + guard. Originally a Plexiglas cover improvised for the Big Red Switch on an IBM 4341 mainframe after a programmer's toddler daughter (named Molly) tripped it twice in one day. Later generalised to covers over stop/reset switches on disk drives and networking equipment.

来源：wiktionary